Transaction Overview

Certificates:

The Class A-1 Certificates and the Class A-2A, Class A-2B, Class A-2C and Class A-2D Certificates (collectively, the “Class A-2 Certificates”; and together with the Class A-1 Certificates, the “Senior Certificates” or “Class A Certificates”), the Class M-1, Class M-2, Class M-3, Class M-4, Class M-5, Class M-6, Class M-7, Class M-8, and Class M-9 Certificates (collectively, the “Mezzanine Certificates” or “Class M Certificates”). The Class A-1 Certificates are backed by conforming principal balance fixed-rate and adjustable-rate first and second lien mortgage loans (the “Group I Mortgage Loans”) and the Class A-2 Certificates are backed by fixed-rate and adjustable-rate first and second lien mortgage loans with conforming and non-conforming principal balances (the “Group II Mortgage Loans”). The Mezzanine Certificates are backed by the Group I Mortgage Loans and Group II Mortgage Loans (collectively, the “Mortgage Loans”). The Senior Certificates along with the Mezzanine Certificates are referred to herein as the “Offered Certificates.”

The depositor has filed a registration statement (including a prospectus) with the SEC for the offering to which this free writing prospectus relates. Before you invest, you should read the prospectus in that registration statement and other documents the depositor has filed with the SEC for more complete information about the depositor and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the depositor, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling DBSI’s trading desk at 212-250-7730. This free writing prospectus is not required to contain all information that is required to be included in the base prospectus and the prospectus supplement. The information in this free writing prospectus is preliminary and is subject to completion or change. The information in this free writing prospectus, if conveyed prior to the time of your commitment to purchase, supersedes information contained in any prior similar free writing prospectus relating to these securities. THIS FREE WRITING PROSPECTUS IS NOT AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE SUCH OFFER, SOLICITATION OR SALE IS NOT PERMITTED. The information in this free writing prospectus may be based on preliminary assumptions about the pool assets and the structure. Any such assumptions are subject to change.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Certificates:	The trust will also issue the Class CE Certificates, the Class P Certificates and the Class R Certificates which are referred to herein as the “Non-offered Certificates”. The pass-through rate on the Class A-1 Certificates will be the lesser of (i) One-Month LIBOR plus a margin and (ii) the applicable Net WAC Pass-Through Rate. The pass-through rates on the Class A-2 Certificates will be the lesser of (i) One-Month LIBOR plus their respective margins and (ii) the applicable Net WAC Pass-Through Rate. The pass-through rates on the Mezzanine Certificates will be the lesser of (i) One-Month LIBOR plus their respective margins and (ii) the applicable Net WAC Pass-Through Rate.

Collateral:	As of the Cut-off Date, the Mortgage Loans will consist of approximately 4,657 adjustable-rate and fixed-rate, first and second lien, closed-end, mortgage loans. The aggregate outstanding principal balance of the Mortgage Loans is approximately $829,214,912 as of the Cut-off Date. The Mortgage Loans will be separated into two groups. The Group I Mortgage Loans will represent approximately 2,479 conforming principal balance fixed-rate and adjustable-rate Mortgage Loans totaling approximately $364,444,648 and the Group II Mortgage Loans will represent approximately 2,178 conforming and non-conforming principal balance fixed and adjustable-rate Mortgage Loans totaling approximately $464,770,264.

Class A Certificates:	Class A-1, Class A-2A, Class A-2B, Class A-2C and Class A-2D Certificates

Class M Certificates:	Class M-1, Class M-2, Class M-3, Class M-4, Class M-5, Class M-6, Class M-7, Class M-8, and Class M-9 Certificates

Depositor:	ACE Securities Corp. (“ACE”)

Issuing Entity:	ACE Securities Corp. Home Equity Loan Trust, Series 2007-ASAP1. The Issuing Entity is also referred to herein as the trust.

Master Servicer and Securities Administrator:	Wells Fargo Bank, National Association

Servicer:	Ocwen Loan Servicing, LLC

Trustee:	HSBC Bank USA, National Association

Custodians:	Wells Fargo Bank, National Association and Deutsche Bank National Trust Company

Credit Risk Manager:	Clayton Fixed Income Services Inc.

Underwriter:	Deutsche Bank Securities Inc.

Swap Provider:	TBD

Cut-off Date:	February 1, 2007

Expected Pricing:	Week of March 5, 2007

Expected Closing Date:	On or about March 13, 2007

Record Date:	For so long as the Offered Certificates are held in book-entry form, the Record Date will be the business day immediately preceding the related Distribution Date. With respect to any Offered Certificates held in definitive form, the Record Date will be the last business day of the month immediately preceding the month in which the related Distribution Date occurs.

Distribution Date:	25^th day of each month (or the next business day if such day is not a business day) commencing in March 2007.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Determination Date:	The Determination Date with respect to any Distribution Date is the 15^th day of the month in which the Distribution Date occurs or, if such day is not a business day, on the immediately preceding business day.

Due Period:	The Due Period with respect to any Distribution Date commences on the second day of the month immediately preceding the month in which such Distribution Date occurs and ends on the first day of the month in which such Distribution Date occurs.

Prepayment Period:	The Prepayment Period with respect to any Distribution Date shall be (i) with respect to principal prepayments in full, the period from the 16th day of the month immediately preceding the Distribution Date to the 15th day of the month in which the Distribution Date occurs and (ii) with respect to principal prepayments in part, the calendar month immediately preceding the month in which the Distribution Date occurs.

Interest Accrual Period:	Interest will initially accrue on the Offered Certificates from the Closing Date to (but excluding) the first Distribution Date, and thereafter, from the prior Distribution Date to (but excluding) the current Distribution Date on an actual/360 basis. The Offered Certificates will initially settle flat (no accrued interest).

Interest Distribution

Amount:

For the Certificates of any class on any Distribution Date is equal to interest accrued during the related Interest Accrual Period on the certificate principal balance of that class immediately prior to such Distribution Date at the then applicable pass-through rate for such class, and reduced (to not less than zero), in the case of each such class, by the allocable share, if any, for such class of prepayment interest shortfalls to the extent not covered by Compensating Interest paid by the Master Servicer or the Servicer and shortfalls resulting from the application of the Servicemembers’ Civil Relief Act or similar state or local laws.

Senior Interest Distribution Amount:	For the Class A Certificates on any Distribution Date is an amount equal to the sum of the Interest Distribution Amount for such Distribution Date for each such class and the Interest Carry Forward Amount, if any, for such Distribution Date for each such class.

Administration Fee Rate:	The Master Servicer, Servicer and Credit Risk Manager will be paid monthly fees on the outstanding principal balance of the Mortgage Loans. These fees initially aggregate to a weighted average cost of approximately 0.5170% for the Mortgage Loans.

Prepayment Interest Shortfalls:	Interest shortfalls attributable to voluntary principal prepayments on the Mortgage Loans.

Compensating Interest:	The Servicer will be required to cover Prepayment Interest Shortfalls on prepayments in full on the Mortgage Loans up to the amount of the Servicing Fee. If the Servicer fails to make any required Compensating Interest payment, the Master Servicer will be required to do so up to the amount of the Master Servicing Fee.

Optional Termination:	On any Distribution Date on which the aggregate outstanding principal balance of the Mortgage Loans as of the last day of the related Due Period is less than or equal to 10% of the aggregate outstanding principal balance of the Mortgage Loans as of the Cut-off Date, the Master Servicer may purchase all of the Mortgage Loans and REO properties remaining in the trust, causing an early retirement of the certificates, but is not required to do so.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Monthly Servicer

Advances:

The Servicer will collect monthly payments of principal and interest on the Mortgage Loans and will be obligated to make advances of delinquent monthly principal and interest payments. The Servicer is required to advance delinquent payments of principal and interest on the Mortgage Loans only to the extent such amounts are deemed recoverable. If the Servicer fails to make any such advance, the Master Servicer will be required to do so subject to its determination of recoverability. The Servicer and the Master Servicer are entitled to be reimbursed for these advances, and therefore these advances are not a form of credit enhancement.

Credit Enhancement:	1) Excess Interest;
	2) Overcollateralization (“OC”); and
	3) Subordination

Allocation of Losses:	Any Realized Losses on the Mortgage Loans will be allocated on any Distribution Date, first, to Net Monthly Excess Cashflow and Net Swap Payments received from the Swap Provider, if any, second, to the Class CE Certificates, third, to the Class M-9 Certificates, fourth, to the Class M-8 Certificates, fifth, to the Class M-7 Certificates, sixth, to the Class M-6 Certificates, seventh, to the Class M-5 Certificates, eighth, to the Class M-4 Certificates, ninth, to the Class M-3 Certificates, tenth, to the Class M-2 Certificates and eleventh, to the Class M-1 Certificates. There will be no allocation of Realized Losses to the Class A Certificates. Investors in the Class A Certificates should note, however, that although Realized Losses cannot be allocated to such Certificates, under certain loss scenarios there may not be enough principal and interest on the Mortgage Loans to distribute to the holders of the Class A Certificates all principal and interest amounts to which they are then entitled.

	Once Realized Losses have been allocated to the Mezzanine Certificates, such amounts with respect to such Certificates will no longer accrue interest and such amounts will not be reinstated thereafter. However, the amount of any Realized Losses allocated to the Mezzanine Certificates may be distributed to such certificates on a subordinated basis on any Distribution Date from Net Monthly Excess Cashflow, if any is available for such Distribution Date, and any Net Swap Payments paid by the Swap Provider.

Required Overcollateralization Amount:	Overcollateralization refers to the amount by which the aggregate principal balance of the Mortgage Loans exceeds the aggregate certificate principal balance of the Certificates. This excess (the “Overcollateralization Amount”) is intended to protect the certificateholders against shortfalls in payments on the Certificates. The Required Overcollateralization Amount for the Certificates, which will be fully established at issuance, is anticipated to be approximately 3.70% of the aggregate principal balance of the Mortgage Loans as of the Cut-off Date. On or after the Stepdown Date and provided that a trigger event is not in effect, the Required Overcollateralization Amount may be permitted to decrease to approximately 7.40% of the aggregate principal balance of the Mortgage Loans as of the last day of the related Due Period, subject to a floor amount of approximately 0.50% of the aggregate outstanding principal balance of the Mortgage Loans as of the Cut-off Date. If, due to losses, the Overcollateralization Amount is reduced below the Required Overcollateralization Amount, excess spread, if any is available will be paid to the Certificates then entitled to receive distributions in respect of principal in order to reduce the certificate principal balance of such Certificates to the extent necessary to reach the Required Overcollateralization Amount. In addition, Net Swap Payments paid by the Swap Provider may be used to restore or maintain the Required Overcollateralization Amount.

Overcollateralization Increase Amount:	An Overcollateralization Increase Amount for any Distribution Date is the lesser of (i) the Net Monthly Excess Cashflow and Net Swap Payments received from the Swap Provider, if any, for that Distribution Date and (ii) the excess of the Required Overcollateralization Amount over the current Overcollateralization Amount.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Overcollateralization Reduction Amount:	An Overcollateralization Reduction Amount for any Distribution Date is the amount by which the current Overcollateralization Amount exceeds the Required Overcollateralization Amount after taking into account all other distributions to be made on the Distribution Date limited to the distribution of principal on the Mortgage Loans.

Stepdown Date:	Is the earlier of (i) the first Distribution Date following the distribution date on which the aggregate certificate principal balances of the Class A Certificates have been reduced to zero and (ii) the later to occur of (x) the Distribution Date occurring in March 2010 and (y) the first Distribution Date on which the Credit Enhancement Percentage (calculated for this purpose only after taking into account distributions of principal on the Mortgage Loans, but prior to any distribution of principal to the holders of the Certificates) is equal to or greater than approximately 43.80%.

Credit Enhancement Percentage:	As of the Closing Date the Initial Credit Enhancement Percentage is as set forth below under the heading “Initial CE %”. The Credit Enhancement Percentage for any class and any Distribution Date is the percentage obtained by dividing (x) the aggregate certificate principal balance of the class or classes subordinate thereto (which includes the Overcollateralization Amount) by (y) the aggregate principal balance of the Mortgage Loans, calculated after giving effect to scheduled payments of principal due during the related Due Period, to the extent received or advanced, and unscheduled collections of principal received during the related Prepayment Period and distribution of the Principal Distribution Amount to the holders of the certificates then entitled to distributions of principal on the Distribution Date.

Class	(S/M)	Initial CE %	CE % On/After Step Down Date
A	AAA / Aaa	21.90%	43.80%
M-1	AA+ / Aa1	18.10%	36.20%
M-2	AA+/Aa2	14.65%	29.30%
M-3	AA+/Aa3	12.70%	25.40%
M-4	AA/A1	10.90%	21.80%
M-5	AA-/A2	9.20%	18.40%
M-6	A+/A3	7.55%	15.10%
M-7	A/Baa1	6.10%	12.20%
M-8	BBB+/Baa2	4.70%	9.40%
M-9	BBB/Baa3	3.70%	7.40%

Net Monthly Excess Cashflow:	For any Distribution Date is equal to the sum of (i) any Overcollateralization Reduction Amount and (ii) the excess of the Available Distribution Amount, net of any Net Swap Payment and the Swap Termination Payment, if any, required to be made by the Securities Administrator, on behalf of the supplemental interest trust (not caused by the occurrence of a Swap Provider trigger event) (described below), to the Swap Provider under the Swap Agreement, over the sum of (w) with respect to the Class A Certificates, the Senior Interest Distribution Amount for such Distribution Date, (x) with respect to the Mezzanine Certificates, the Interest Distribution Amount for such Distribution Date and (y) the amount of principal remittance required to be distributed to the holders of the certificates on such Distribution Date.

Net WAC Pass-Through Rate:	Class A-1 Certificates or Class A-2 Certificates: The per annum rate (subject to adjustment based on the actual number of days elapsed in the related Interest Accrual Period) equal to the product of 12 and a fraction, expressed as a percentage, the numerator of which is the difference of (a) the amount of interest which accrued on the Mortgage Loans in the related loan group in the prior calendar month minus the fees payable to the Servicer, the Master Servicer and the Credit Risk Manager with respect to the related Mortgage Loans for such Distribution Date over (b) the Group I Allocation Percentage or Group II Allocation Percentage, as applicable, of any Net Swap Payment or Swap Termination Payment made to the Swap Provider (not caused by the occurrence of a Swap Provider trigger event) for such Distribution Date and the denominator of which is the aggregate principal balance of the Mortgage Loans in the related loan group as of the last day of the immediately preceding Due Period (or as of the Cut-off Date with respect to the first Distribution Date), after giving effect to principal prepayments received during the related Prepayment Period.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Net WAC Pass- Through Rate (Continued):	Mezzanine Certificates: The per annum rate equal to (x) the weighted average (weighted in proportion to the results of subtracting from the aggregate principal balance of each loan group, the current certificate principal balance of the related Class A Certificates) of (i) the Net WAC Pass-Through Rate for the Class A-1 Certificates and (ii) the Net WAC Pass-Through Rate for the Class A-2 Certificates.

	Group I Allocation Percentage: The aggregate principal balance of the Group I Mortgage Loans divided by the sum of the aggregate principal balance of the Group I Mortgage Loans and the Group II Mortgage Loans.

	Group II Allocation Percentage: The aggregate principal balance of the Group II Mortgage Loans divided by the sum of the aggregate principal balance of the Group I Mortgage Loans and the Group II Mortgage Loans.

Net WAC Rate Carryover Amount:	If on any Distribution Date the Pass-Through Rate for any class of the Series 2007-ASAP1 Certificates is limited by the related Net WAC Pass-Through Rate, such class will be entitled to the “Net WAC Rate Carryover Amount” which will be equal to the sum of (i) the excess of (a) the amount of interest that would have accrued on such class based on one-month LIBOR plus the related margin over (b) the amount of interest accrued on such class based on the related Net WAC Pass-Through Rate and (ii) the unpaid portion of any related Net WAC Rate Carryover Amount from the prior Distribution Date together with interest accrued on such unpaid portion at a rate equal to one-month LIBOR plus the related margin for the most recently ended Interest Accrual Period. Any Net WAC Rate Carryover Amount will be paid on such Distribution Date or future Distribution Dates to the extent of funds available. The Net WAC Rate Carryover Amount will be distributed from certain amounts received by the Securities Administrator, on behalf of the Supplemental Interest Trust (described below), under the Swap Agreement, if any, and from the Net Monthly Excess Cashflow on a subordinated basis on the same Distribution Date or on any subsequent Distribution Date to the extent of available funds. The ratings on each class of Certificates do not address the likelihood of the payment of any Net WAC Rate Carryover Amount from Net Monthly Excess Cashflow.

Group I Cap Agreement:	On the Closing Date, the Trustee will enter into a “Group I Cap Agreement” which will be effective commencing on the Distribution Date in March 2007 and ending immediately following the Distribution Date in August 2007 to make payments in respect of any Net WAC Rate Carryover Amounts in respect of the Class A-1 and Mezzanine Certificates as described herein. The Group I Cap Agreement requires a cap payment in an amount equal to the product of: (1) the excess, if any, of one-month LIBOR over a strike rate of [7.50]% for the related Distribution Date; (2) the related scheduled notional amount, which is based on the lesser of (i) the expected amortization of the Group I Mortgage Loans and (ii) the aggregate Certificate Principal Balance of the Class A-1 Certificates, Mezzanine Certificates and Class CE Certificates, and (3) a fraction, the numerator of which is the actual number of days elapsed from the previous Distribution Date to but excluding the current Distribution Date (or, for the first Distribution Date, the actual number of days elapsed from the Closing Date to but excluding the first Distribution Date), and the denominator of which is 360.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Group II Cap Agreement:	On the Closing Date, the Trustee will enter into a “Group II Cap Agreement” which will be effective commencing on the Distribution Date in March 2007 and ending immediately following the Distribution Date in August 2007 to make payments in respect of any Net WAC Rate Carryover Amounts in respect of the Class A-2A, Class A-2B, Class A-2C, Class A-2D and Mezzanine Certificates as described herein. The Group II Cap Agreement requires a cap payment in an amount equal to the product of: (1) the excess, if any, of one-month LIBOR over a strike rate of [7.50]% for the related Distribution Date; (2) the related scheduled notional amount, which is based on the lesser of (i) the expected amortization of the Group II Mortgage Loans and (ii) the aggregate Certificate Principal Balance of the Class A-2A, Class A-2B, Class A-2C, Class A-2D and Mezzanine Certificates, and Class CE Certificates, and (3) a fraction, the numerator of which is the actual number of days elapsed from the previous Distribution Date to but excluding the current Distribution Date (or, for the first Distribution Date, the actual number of days elapsed from the Closing Date to but excluding the first Distribution Date), and the denominator of which is 360.

Swap Agreement:	On the Closing Date, the Trustee will enter into a Swap Agreement with the Swap Provider described in the final prospectus supplement. The Swap Agreement will have an initial notional amount of $738,019,064. Beginning with the Distribution Date in September 2007, the Trust (through a supplemental interest trust) will be obligated to pay an amount equal to [5.05]% per annum on the notional amount as set forth in the Swap Agreement to the Swap Provider and the Swap Provider will be obligated to pay to the supplemental interest trust, for the benefit of the holders of the Offered Certificates, an amount equal to one-month LIBOR on the notional amount as set forth in the Swap Agreement until the Swap Agreement is terminated. Only the net amount of the two obligations will be paid by the appropriate party (the “Net Swap Payment”). See the attached schedule.

	A separate trust created under the pooling and servicing agreement (the “Supplemental Interest Trust”) will hold the Swap Agreement. The Swap Agreement and any payments made by the Swap Provider thereunder will be assets of the Supplemental Interest Trust but will not be assets of any REMIC.

	Upon early termination of the Swap Agreement, the Supplemental Interest Trust or the Swap Provider may be liable to make a termination payment (the ‘‘Swap Termination Payment’’) to the other party (regardless of which party caused the termination). The Swap Termination Payment will be computed in accordance with the procedures set forth in the Swap Agreement. In the event that the Securities Administrator, on behalf of the Supplemental Interest Trust, is required to make a Swap Termination Payment, that payment will be paid on the related Distribution Date, and on any subsequent Distribution Dates until paid in full, generally, prior to distributions to Certificate holders.

Available Distribution Amount:	For any Distribution Date, net of the administrative fees, an amount equal to (i) the aggregate amount of scheduled monthly payments on the Mortgage Loans due on the related Due Date and received on or prior to the related Determination Date; (ii) unscheduled payments in respect of the Mortgage Loans (including prepayments, insurance proceeds, liquidation proceeds, subsequent recoveries and proceeds from repurchases of and substitutions for the Mortgage Loans occurring during the related Prepayment Period or proceeds from the repurchase of the Mortgage Loans due to the Optional Termination of the Trust); (iii) all P&I Advances with respect to the Mortgage Loans received for the Distribution Date; (iv) all Compensating Interest paid by the Servicer or the Master Servicer in respect of Prepayment Interest Shortfalls for the related Due Period; and (v) Net Swap Payments payable by the Swap Provider.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Class A Principal Distribution Amount:	Until the Stepdown Date, the Class A Principal Distribution Amount will be distributed to the holders of the Class A-1 Certificates and the Class A-2 Certificates concurrently, on a pro rata basis based on the related Class A principal allocation percentage (for any Distribution Date, the percentage equivalent of a fraction, the numerator of which is the principal remittance amount for the Group I Mortgage Loans (in the case of the Class A-1 Certificates) or the principal remittance amount for the Group II Mortgage Loans (in the case of the Class A-2 Certificates) and the denominator of which is equal to the principal remittance amount for all of the Mortgage Loans). Until the Stepdown Date, or if a Trigger Event occurs, the Class A Certificates will receive the principal collected on the Mortgage Loans plus any excess interest and any net swap payment received required to maintain the Required Overcollateralization Amount until the aggregate certificate principal balance of the Class A Certificates has been reduced to zero. On or after the Stepdown Date, if no Trigger Event occurs, principal paid on the Class A Certificates will be an amount such that the Class A Certificates will maintain approximately a 43.80% Credit Enhancement Percentage (2x the Class A Initial Credit Enhancement Percentage). The Class A Principal Distribution Amount will be distributed to the holders of the Class A-1 Certificates and the Class A-2 Certificates to the extent of their respective group-based principal distribution amount.

	Principal distributions to the Class A-2 Certificates will be allocated sequentially to the Class A-2A, Class A-2B, Class A-2C and Class A-2D Certificates, in that order, until the certificate principal balance of each such class has been reduced to zero; provided, however, on any Distribution Date on which the aggregate certificate principal balance of the Mezzanine Certificates has been reduced to zero, all principal distributions will be distributed to the Class A-2 Certificates concurrently, on a pro rata basis, based on the certificate principal balance of each such class, until the certificate principal balance of each such class has been reduced to zero.

Class M Principal Distribution Amount:	Generally, the Mezzanine Certificates will not receive any principal payments until the Stepdown Date. On or after the Stepdown Date (if no Trigger Event occurs), principal will be paid to the Mezzanine Certificates, first to the Class M-1 Certificates until it reaches approximately a 36.20% Credit Enhancement Percentage (2x the Class M-1 Initial Credit Enhancement Percentage), second to the Class M-2 Certificates until it reaches approximately a 29.30% Credit Enhancement Percentage (2x the Class M-2 Initial Credit Enhancement Percentage), third to the Class M-3 Certificates until it reaches approximately a 25.40% Credit Enhancement Percentage (2x the Class M-3 Initial Credit Enhancement Percentage), fourth to the Class M-4 Certificates until it reaches approximately a 21.80% Credit Enhancement Percentage (2x the Class M-4 Initial Credit Enhancement Percentage), fifth to the Class M-5 Certificates until it reaches approximately a 18.40% Credit Enhancement Percentage (2x the Class M-5 Initial Credit Enhancement Percentage), sixth to the Class M-6 Certificates until it reaches approximately a 15.10% Credit Enhancement Percentage (2x the Class M-6 Initial Credit Enhancement Percentage), seventh to the Class M-7 Certificates until it reaches approximately a 12.20% Credit Enhancement Percentage (2x the Class M-7 Initial Credit Enhancement Percentage), eighth to the Class M-8 Certificates until it reaches approximately a 9.40% Credit Enhancement Percentage (2x the Class M-8 Initial Credit Enhancement Percentage), and ninth to the Class M-9 Certificates until it reaches approximately a 7.40% Credit Enhancement Percentage (2x the Class M-9 Initial Credit Enhancement Percentage).


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Coupon Step-up:

On the Distribution Date following the first possible optional termination date, the margins on the Class A Certificates and the Mezzanine Certificates will increase to the following, provided that the pass-through rate on the certificates will still be subject to the applicable Net WAC Pass-Through Rate.

	Class	After Optional Termination
	A	2 x related Margin
	M	The lesser of 1.5 x related Margin and related Margin plus 0.50%

Trigger Event:	If either the Delinquency Test or Cumulative Loss Test is violated.

Delinquency Test:	The determination on any Distribution Date that the percentage obtained by dividing (x) the principal amount of (1) Mortgage Loans delinquent 60 days or more, (2) Mortgage Loans in foreclosure, (3) REO Properties and (4) Mortgage Loans discharged due to bankruptcy by (y) the aggregate principal balance of the Mortgage Loans, in each case, as of the last day of the previous calendar month, exceeds 36.50% of the Credit Enhancement Percentage of the Class A Certificates.

Cumulative Loss Test:	The determination on any Distribution Date that the aggregate amount of Realized Losses incurred since the Cut-off Date through the last day of the related Due Period divided by the aggregate principal balance of the Mortgage Loans as of the Cut-off Date exceeds the applicable percentages set forth below with respect to such Distribution Date:

	Distribution Date Occurring in	Percentage
	March 2009 to February 2010	1.55%, plus 1/12th of 1.95% for each month thereafter
	March 2010 to February 2011	3.50%, plus 1/12th of 1.95% for each month thereafter
	March 2011 to February 2012	5.45%, plus 1/12th of 1.60% for each month thereafter
	March 2012 to February 2013	7.05%, plus 1/12th of 0.85% for each month thereafter
	March 2013 to Feburary 2014	7.90%, plus 1/12th of 0.05% for each month thereafter
	March 2014 and thereafter	7.95%


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

Payment Priority:	I. On each Distribution Date, the Available Distribution Amount (net of any Net Swap Payments payable by the Swap Provider) will be distributed as follows:

	1.	Commencing on the Distribution Date occurring in September 2007, to the Supplemental Interest Trust, to pay any Net Swap Payment or the Swap Termination Payment (not caused by a Swap Provider Trigger Event (as defined in the Swap Agreement)) owed to the Swap Provider.

	2.	To pay interest to the Class A Certificates, pro rata, including any accrued unpaid interest from a prior Distribution Date, then to pay interest excluding any accrued unpaid interest from a prior Distribution Date to the Mezzanine Certificates, on a sequential basis.

	3.	To pay principal to the Class A Certificates in accordance with the principal payment provisions described above.

	4.	To pay principal to the Mezzanine Certificates in accordance with the principal payment provisions described above.

	5.	From excess interest, if any, to the certificates then entitled to receive distributions in respect of principal in order to reduce the certificate principal balance of the certificates to the extent necessary to restore or maintain the Required Overcollateralization Amount.

	6.	From excess interest, if any, to pay the Interest Carry Forward Amounts on the Mezzanine Certificates, on a sequential basis.

	7.	From excess interest, if any, to pay the allocated Realized Losses on the Mezzanine Certificates, on a sequential basis.

	8.	From excess interest, if any, to pay the Net WAC Rate Carryover Amount on the Class A Certificates and the Mezzanine Certificates in the same order of priority as described in 2 above.

	9.	From excess interest, if any, commencing on the Distribution Date occurring in September 2007, to pay the Swap Termination Payment (caused by a Swap Provider Trigger Event under the Swap Agreement) owed to the Swap Provider.

	10.	To pay any remaining amount to the Non-offered Certificates in accordance with the Pooling and Servicing Agreement.

	II. Commencing on the Distribution Date occurring in September 2007, any Net Swap Payments on deposit in the Supplemental Interest Trust will be paid as follows:

	1.	To pay any Net Swap Payment or the Swap Termination Payment (not caused by a Swap Provider Trigger Event (as defined in the Swap Agreement)) owed to the Swap Provider.

	2.	To pay any unpaid interest on the Class A Certificates including any accrued unpaid interest from a prior Distribution Date, on a pro rata basis, and then to pay any unpaid interest including any accrued unpaid interest from prior Distribution Dates to the Mezzanine Certificates, sequentially.

	3.	To pay any unpaid allocated Realized Losses* remaining unpaid on the Mezzanine Certificates, sequentially.

	4.	To pay any principal to the Offered Certificates in accordance with the principal payment provisions described above in an amount necessary to restore or maintain the Required Overcollateralization Amount.*

	5.	To pay the Net WAC Rate Carryover Amount on the Offered Certificates remaining unpaid in the same order of priority as described above.

	6.	To pay the Swap Termination Payment (caused by a Swap Provider Trigger Event under the Swap Agreement) owed to the Swap Provider.

	7.	To pay any remaining amount to the Class CE Certificates.

	* Notwithstanding the foregoing, the cumulative amount paid pursuant to clauses 3 and 4 shall at no time be permitted to exceed the cumulative amount of realized losses incurred on the Mortgage Loans from and after the Cut-Off Date.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Transaction Overview (Cont.)

ERISA:	It is expected that the Offered Certificates may be purchased by, or with the assets of, employee benefit plans subject to the Employee Retirement Income Security Act of 1974, as amended (“ERISA”) or plans or arrangements subject to section 4975 of the Internal Revenue Code (each, a “Plan”). Prior to the termination of the Supplemental Interest Trust, Plans or persons using assets of a Plan may purchase the Offered Certificates if the purchase and holding meets the requirements of an investor-based class exemption issued by the Department of Labor. Investors should consult with their counsel with respect to the consequences under ERISA and the Internal Revenue Code of a Plan’s acquisition and ownership of such certificates.

Legal Investment:	The Offered Certificates will not constitute “mortgage related securities” for purposes of the Secondary Mortgage Market Enhancement Act of 1984.

Taxation - REMIC:	One or more REMIC elections will be made for designated portions of the Trust (exclusive of the reserve fund, the Group I Cap Agreement, the Group II Cap Agreement, certain shortfall payments or payments from the Supplemental Interest Trust or the obligation to make payments to the Supplemental Interest Trust pursuant to the Swap Agreement).

Form of Registration:	Book-entry form through DTC, Clearstream and Euroclear.

Minimum Denominations:	$25,000 and integral multiples of $1 in excess thereof.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Cap Schedules

Group I Cap Schedule			Group II Cap Schedule
Payment Date	Notional Amount ($)	Strike Rate (%)	Payment Date	Notional Amount ($)	Strike Rate (%)
3/25/2007	364,444,648	7.50	3/25/2007	464,770,264	7.50
4/25/2007	361,483,693	7.50	4/25/2007	461,101,462	7.50
5/25/2007	357,902,756	7.50	5/25/2007	456,645,091	7.50
6/25/2007	353,706,781	7.50	6/25/2007	451,406,948	7.50
7/25/2007	348,703,874	7.50	7/25/2007	445,396,823	7.50
8/25/2007	343,505,347	7.50	8/25/2007	438,628,667	7.50

Swap Schedule

Distribution Date	Notional Schedule ($)	Distribution Date	Notional Schedule ($)
9/25/2007	738,019,064	12/25/2009	159,994,002
10/25/2007	715,587,468	1/25/2010	153,071,583
11/25/2007	691,374,736	2/25/2010	146,456,715
12/25/2007	665,648,170	3/25/2010	140,133,942
1/25/2008	638,714,700	4/25/2010	134,089,983
2/25/2008	612,628,027	5/25/2010	128,312,289
3/25/2008	587,600,195	6/25/2010	122,788,897
4/25/2008	563,599,229	7/25/2010	117,508,397
5/25/2008	540,582,821	8/25/2010	112,459,947
6/25/2008	518,510,414	9/25/2010	107,633,094
7/25/2008	497,343,209	10/25/2010	103,017,903
8/25/2008	477,043,851	11/25/2010	98,604,903
9/25/2008	457,490,714	12/25/2010	94,385,055
10/25/2008	438,698,247	1/25/2011	90,349,733
11/25/2008	420,400,086	2/25/2011	86,490,702
12/25/2008	399,729,443	3/25/2011	82,800,102
1/25/2009	346,653,625	4/25/2011	79,270,423
2/25/2009	300,053,365	5/25/2011	75,894,506
3/25/2009	261,038,561	6/25/2011	72,665,510
4/25/2009	229,774,251	7/25/2011	69,576,910
5/25/2009	218,431,400	8/25/2011	66,622,467
6/25/2009	208,812,881	9/25/2011	63,796,234
7/25/2009	199,725,756	10/25/2011	61,092,494
8/25/2009	191,042,611	11/25/2011	58,505,833
9/25/2009	182,744,913	12/25/2011	56,031,033
10/25/2009	174,815,202	1/25/2012	53,662,963
11/25/2009	167,236,850	2/25/2012	51,390,117


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Sensitivity Table

To 10% Call

	Fixed>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC
	Arm>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC

A-1	Avg Life	21.31	4.32	2.29	1.61	1.22
	First Payment Date	Mar-07	Mar-07	Mar-07	Mar-07	Mar-07
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Aug-09

A-2A	Avg Life	14.66	1.55	1.00	0.83	0.68
	First Payment Date	Mar-07	Mar-07	Mar-07	Mar-07	Mar-07
	Last Payment Date	Sep-28	Feb-10	Dec-08	Sep-08	May-08

A-2B	Avg Life	23.33	3.74	2.00	1.76	1.46
	First Payment Date	Sep-28	Feb-10	Dec-08	Sep-08	May-08
	Last Payment Date	Jul-32	Jan-12	Jun-09	Feb-09	Nov-08

A-2C	Avg Life	27.18	6.61	3.00	2.09	1.83
	First Payment Date	Jul-32	Jan-12	Jun-09	Feb-09	Nov-08
	Last Payment Date	Dec-35	Dec-15	Oct-11	Jul-09	Feb-09

A-2D	Avg Life	29.59	11.75	6.22	3.64	2.15
	First Payment Date	Dec-35	Dec-15	Oct-11	Jul-09	Feb-09
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Sep-09

M-1	Avg Life	28.19	8.57	4.91	5.13	3.53
	First Payment Date	Jan-32	Mar-11	Nov-10	Nov-11	Sep-09
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11

M-2	Avg Life	28.18	8.57	4.81	4.59	3.87
	First Payment Date	Dec-31	Mar-11	Aug-10	Apr-11	Jan-11
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11

M-3	Avg Life	28.18	8.57	4.75	4.32	3.82
	First Payment Date	Dec-31	Mar-11	Jul-10	Jan-11	Nov-10
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11

M-4	Avg Life	28.18	8.57	4.72	4.18	3.61
	First Payment Date	Dec-31	Mar-11	Jun-10	Nov-10	Aug-10
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11

M-5	Avg Life	28.18	8.57	4.70	4.08	3.44
	First Payment Date	Dec-31	Mar-11	Jun-10	Sep-10	May-10
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Sensitivity Table

To 10% Call (Continued)

	Fixed>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC
	Arm>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC

M-6	Avg Life	28.18	8.57	4.67	4.01	3.32
	First Payment Date	Dec-31	Mar-11	May-10	Jul-10	Mar-10
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11

M-7	Avg Life	28.18	8.57	4.66	3.94	3.22
	First Payment Date	Dec-31	Mar-11	Apr-10	Jun-10	Feb-10
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11

M-8	Avg Life	28.18	8.57	4.65	3.89	3.15
	First Payment Date	Nov-31	Mar-11	Apr-10	May-10	Jan-10
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11

M-9	Avg Life	28.18	8.57	4.65	3.86	3.09
	First Payment Date	Nov-31	Mar-11	Apr-10	May-10	Dec-09
	Last Payment Date	Dec-36	Mar-20	Feb-14	Jun-12	Jan-11


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Sensitivity Table

To Maturity

	Fixed>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC
	Arm>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC

A-1	Avg Life	21.31	4.64	2.49	1.76	1.22
	First Payment Date	Mar-07	Mar-07	Mar-07	Mar-07	Mar-07
	Last Payment Date	Jan-37	Jul-33	Oct-22	Jul-19	Aug-09

A-2A	Avg Life	14.66	1.55	1.00	0.83	0.68
	First Payment Date	Mar-07	Mar-07	Mar-07	Mar-07	Mar-07
	Last Payment Date	Sep-28	Feb-10	Dec-08	Sep-08	May-08

A-2B	Avg Life	23.33	3.74	2.00	1.76	1.46
	First Payment Date	Sep-28	Feb-10	Dec-08	Sep-08	May-08
	Last Payment Date	Jul-32	Jan-12	Jun-09	Feb-09	Nov-08

A-2C	Avg Life	27.18	6.61	3.00	2.09	1.83
	First Payment Date	Jul-32	Jan-12	Jun-09	Feb-09	Nov-08
	Last Payment Date	Dec-35	Dec-15	Oct-11	Jul-09	Feb-09

A-2D	Avg Life	29.59	13.72	7.51	4.63	2.15
	First Payment Date	Dec-35	Dec-15	Oct-11	Jul-09	Feb-09
	Last Payment Date	Jan-37	Feb-33	Oct-22	Sep-19	Sep-09

M-1	Avg Life	28.19	9.40	5.43	5.63	5.68
	First Payment Date	Jan-32	Mar-11	Nov-10	Nov-11	Sep-09
	Last Payment Date	Jan-37	Jun-30	Sep-20	Aug-17	May-16

M-2	Avg Life	28.19	9.38	5.31	4.98	4.76
	First Payment Date	Dec-31	Mar-11	Aug-10	Apr-11	Mar-11
	Last Payment Date	Jan-37	Jun-29	Feb-20	Feb-17	Jul-14

M-3	Avg Life	28.19	9.35	5.24	4.70	4.14
	First Payment Date	Dec-31	Mar-11	Jul-10	Jan-11	Nov-10
	Last Payment Date	Jan-37	Jul-28	Jun-19	Aug-16	Feb-14

M-4	Avg Life	28.18	9.33	5.19	4.55	3.89
	First Payment Date	Dec-31	Mar-11	Jun-10	Nov-10	Aug-10
	Last Payment Date	Dec-36	Nov-27	Jan-19	Apr-16	Nov-13

M-5	Avg Life	28.18	9.29	5.15	4.43	3.70
	First Payment Date	Dec-31	Mar-11	Jun-10	Sep-10	May-10
	Last Payment Date	Dec-36	Mar-27	Jul-18	Dec-15	Aug-13


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Sensitivity Table

To Maturity (Continued)

	Fixed>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC
	Arm>>	0% PPC	55% PPC	100% PPC	125% PPC	160% PPC

M-6	Avg Life	28.18	9.24	5.09	4.33	3.56
	First Payment Date	Dec-31	Mar-11	May-10	Jul-10	Mar-10
	Last Payment Date	Dec-36	May-26	Jan-18	Jul-15	Apr-13

M-7	Avg Life	28.18	9.18	5.04	4.23	3.44
	First Payment Date	Dec-31	Mar-11	Apr-10	Jun-10	Feb-10
	Last Payment Date	Dec-36	Jun-25	Jun-17	Jan-15	Dec-12

M-8	Avg Life	28.18	9.08	4.96	4.14	3.34
	First Payment Date	Nov-31	Mar-11	Apr-10	May-10	Jan-10
	Last Payment Date	Dec-36	May-24	Oct-16	Jul-14	Aug-12

M-9	Avg Life	28.18	8.97	4.88	4.04	3.23
	First Payment Date	Nov-31	Mar-11	Apr-10	May-10	Dec-09
	Last Payment Date	Dec-36	Feb-23	Dec-15	Nov-13	Feb-12


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Effective Available Funds Schedule*
Period	Date	Net WAC Pass- Through Rate Class A-1 (%)	Net WAC Pass- Through Rate Class A-2 (%)	Net WAC Pass- Through Rate Mezz (%)
1	3/25/2007	31.965	31.130	31.497
2	4/25/2007	20.035	19.710	19.853
3	5/25/2007	20.285	19.950	20.097
4	6/25/2007	20.034	19.708	19.851
5	7/25/2007	20.285	19.948	20.096
6	8/25/2007	20.033	19.706	19.850
7	9/25/2007	22.044	21.716	21.860
8	10/25/2007	21.974	21.635	21.784
9	11/25/2007	21.692	21.363	21.508
10	12/25/2007	21.589	21.249	21.398
11	1/25/2008	21.268	20.937	21.083
12	2/25/2008	21.048	20.721	20.865
13	3/25/2008	21.054	20.705	20.858
14	4/25/2008	20.618	20.292	20.435
15	5/25/2008	20.521	20.184	20.332
16	6/25/2008	20.203	19.878	20.021
17	7/25/2008	20.136	19.782	19.937
18	8/25/2008	19.819	19.478	19.628
19	9/25/2008	19.640	19.302	19.451
20	10/25/2008	19.572	19.240	19.386
21	11/25/2008	19.281	18.944	19.092
22	12/25/2008	19.464	19.153	19.290
23	1/25/2009	19.814	19.288	19.520
24	2/25/2009	18.991	18.502	18.717
25	3/25/2009	18.940	18.396	18.635
26	4/25/2009	17.639	17.155	17.368
27	5/25/2009	17.696	17.192	17.414
28	6/25/2009	17.428	16.954	17.163
29	7/25/2009	17.980	17.409	17.660
30	8/25/2009	17.612	17.071	17.309
31	9/25/2009	17.487	16.946	17.184
32	10/25/2009	17.603	17.050	17.293
33	11/25/2009	17.240	16.706	16.941
34	12/25/2009	17.527	16.932	17.194
35	1/25/2010	17.858	17.259	17.522
36	2/25/2010	17.757	17.229	17.461
37	3/25/2010	18.554	17.965	18.224
38	4/25/2010	17.530	17.004	17.235
39	5/25/2010	17.707	17.161	17.401
40	6/25/2010	17.421	16.887	17.122
41	7/25/2010	18.135	17.523	17.792
42	8/25/2010	17.727	17.166	17.413

*Running to Call

*PPC: 100% (ARM); PPC: 100% (Fixed)

*1 Month LIBOR: 20%

*6 Month Libor: 20%

*Includes Net Swap Payments received from the Swap Provider and includes Cap Proceeds


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

*Effective Available Funds Schedule (cont.)**
Period	Date	Net WAC Pass- Through Rate Class A-1 (%)	Net WAC Pass- Through Rate Class A-2 (%)	Net WAC Pass- Through Rate Mezz (%)
43	9/25/2010	17.623	17.057	17.306
44	10/25/2010	17.824	17.242	17.498
45	11/25/2010	17.409	16.846	17.094
46	12/25/2010	17.639	17.044	17.306
47	1/25/2011	17.311	16.753	16.999
48	2/25/2011	17.214	16.675	16.912
49	3/25/2011	18.138	17.540	17.802
50	4/25/2011	17.017	16.477	16.712
51	5/25/2011	17.240	16.683	16.925
52	6/25/2011	16.846	16.290	16.532
53	7/25/2011	17.162	16.605	16.847
54	8/25/2011	16.749	16.229	16.456
55	9/25/2011	16.660	16.139	16.366
56	10/25/2011	16.898	16.358	16.593
57	11/25/2011	16.486	15.961	16.189
58	12/25/2011	16.731	16.193	16.427
59	1/25/2012	16.350	15.821	16.051
60	2/25/2012	16.275	15.761	15.984
61	3/25/2012	12.253	11.709	11.946
62	4/25/2012	11.455	10.945	11.167
63	5/25/2012	11.829	11.301	11.530
64	6/25/2012	11.440	10.930	11.152
65	7/25/2012	11.823	11.293	11.523
66	8/25/2012	11.436	10.927	11.148
67	9/25/2012	11.428	10.921	11.142
68	10/25/2012	11.801	11.276	11.504
69	11/25/2012	11.412	10.904	11.125
70	12/25/2012	11.785	11.260	11.488
71	1/25/2013	11.406	10.895	11.117
72	2/25/2013	11.400	10.893	11.114
73	3/25/2013	12.613	12.054	12.297
74	4/25/2013	11.384	10.878	11.098
75	5/25/2013	11.756	11.232	11.459
76	6/25/2013	11.369	10.862	11.082
77	7/25/2013	11.748	11.222	11.450
78	8/25/2013	11.363	10.859	11.078
79	9/25/2013	11.355	10.852	11.070
80	10/25/2013	11.724	11.205	11.430
81	11/25/2013	11.337	10.834	11.053
82	12/25/2013	11.706	11.186	11.412
83	1/25/2014	11.320	10.816	11.035
84	2/25/2014	11.311	10.807	11.026

*Running to Call

*PPC: 100% (ARM); PPC: 100% (Fixed)

*1 Month LIBOR: 20%

*6 Month Libor: 20%

*Includes Net Swap Payments received from the Swap Provider and includes Cap Proceeds


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Excess Spread*

(Assumes Pricing Prepayment Speed, Excludes Basis Risk Shortfalls)

Period	Excess Spread in bp (Static LIBOR)	1 Month Forward LIBOR (%)	6 Month Forward LIBOR (%)	Excess Spread in bp (Forward LIBOR)	Period	Excess Spread in bp (Static LIBOR)	1 Month Forward LIBOR (%)	6 Month Forward LIBOR (%)	Excess Spread in bp (Forward LIBOR)
1	545	5.3200	5.3300	545	45	426	4.7905	4.8752	422
2	205	5.3324	5.2950	204	46	436	4.7896	4.8949	433
3	223	5.3185	5.2449	223	47	425	4.7877	4.9163	427
4	205	5.2479	5.1840	212	48	425	4.7852	4.9354	427
5	223	5.2257	5.1305	231	49	457	4.9005	4.9558	451
6	205	5.1778	5.0710	219	50	424	4.9016	4.9574	420
7	248	5.1057	5.0057	248	51	434	4.9037	4.9593	430
8	248	5.0366	4.9627	248	52	422	4.9062	4.9605	420
9	247	4.9848	4.9213	247	53	433	4.9073	4.9624	432
10	248	4.9109	4.8814	248	54	421	4.9087	4.9636	421
11	246	4.8849	4.8490	247	55	420	4.9102	4.9642	421
12	246	4.8058	4.8105	248	56	431	4.9116	4.9744	431
13	249	4.8360	4.7835	252	57	419	4.9125	4.9832	420
14	245	4.7964	4.7441	249	58	431	4.9144	4.9943	431
15	247	4.7566	4.7041	252	59	421	4.9151	5.0030	424
16	245	4.7165	4.6646	250	60	422	4.9154	5.0127	426
17	248	4.6767	4.6257	255	61	443	4.9598	5.0237	454
18	245	4.6352	4.5838	253	62	407	4.9613	5.0243	420
19	247	4.5989	4.5483	256	63	424	4.9641	5.0263	436
20	250	4.5606	4.5711	261	64	406	4.9650	5.0275	419
21	249	4.5216	4.5988	261	65	424	4.9664	5.0292	437
22	280	4.4857	4.6282	287	66	406	4.9686	5.0312	420
23	395	4.4479	4.6636	386	67	406	4.9689	5.0307	420
24	396	4.4116	4.7050	392	68	423	4.9703	5.0417	436
25	415	4.7260	4.7459	402	69	405	4.9714	5.0526	419
26	391	4.7150	4.7346	383	70	422	4.9724	5.0647	435
27	399	4.7035	4.7233	391	71	404	4.9740	5.0755	420
28	391	4.6931	4.7128	385	72	404	4.9730	5.0885	420
29	405	4.6827	4.7025	395	73	456	5.0476	5.1000	464
30	397	4.6714	4.6909	389	74	403	5.0491	5.1011	412
31	396	4.6608	4.6800	390	75	420	5.0517	5.1037	429
32	405	4.6504	4.7047	398	76	402	5.0528	5.1040	412
33	396	4.6396	4.7306	391	77	419	5.0547	5.1055	429
34	409	4.6296	4.7573	403	78	401	5.0566	5.1071	412
35	429	4.6181	4.7891	426	79	401	5.0573	5.1066	411
36	433	4.6078	4.8169	431	80	418	5.0596	5.1144	428
37	462	4.8008	4.8472	449	81	400	5.0598	5.1225	410
38	418	4.7997	4.8463	409	82	417	5.0611	5.1294	427
39	431	4.7986	4.8447	422	83	399	5.0625	5.1365	411
40	423	4.7972	4.8431	416	84	398	5.0619	5.1449	411
41	436	4.7963	4.8423	431
42	427	4.7950	4.8405	422
43	427	4.7940	4.8381	422
44	437	4.7922	4.8581	432

* The product of 1) 120,000 and 2) a percentage, the numerator of which is aggregate net interest on the mortgage loans minus aggregate current interest paid to the certificates and any net swap payment to the swap provider plus any net swap payment received from the swap provider, and the denominator of which is aggregate pool balance of mortgage loans.


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

Breakeven CDR Table for the Mezzanine Certificates

The assumptions for the breakeven CDR table below are as follows:

- The Pricing Assumption is applied

- 10% cleanup call is not exercised

- Forward Curves

- 40% Severity

- Interest & Principal advancing

- 6 month recovery lag

- Triggers Failing

The table below displays the Constant Default Rate (“CDR”) and the related cumulative collateral loss before the referenced Class incurs a writedown.

Class	CDR Break-Even (%)	Cumulative Loss (%)
M-1	29.71	21.99
M-2	23.72	19.15
M-3	20.72	17.53
M-4	18.15	16.01
M-5	15.91	14.58
M-6	13.81	13.14
M-7	11.96	11.78
M-8	10.37	10.53
M-9	9.57	9.87


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

SUMMARY - AGGREGATE POOL*

Number of Mortgage Loans	4,657	Index Type:
Aggregate Principal Balance	$829,214,912	6 Month LIBOR:	76.97%
Conforming Principal Balance Loans	$640,654,938	Fixed Rate:	23.03%
Average Principal Balance:	$178,058	W.A. Initial Periodic Cap:	2.985%
Range:	$10,295 - $1,480,000	W.A. Subsequent Periodic Cap:	1.002%
W.A. Coupon:	8.116%	W.A. Lifetime Rate Cap:	6.002%
Range:	5.125% - 16.750%	Property Type:
W.A. Gross Margin:	5.697%	Single Family:	65.48%
Range:	2.250% - 8.260%	PUD:	26.42%
W.A. Remaining Term (months):	347	Condo:	5.77%
Range (months):	113-360	2-4 Family:
W.A. Seasoning (months):	2	Occupancy Status:	2.33%
Latest Maturity Date:	February 1, 2037	Primary:	97.66%
State Concentration (Top 5):		Investment:	1.89%
California:	31.60%	Second Home:	0.46%
Florida:	10.42%	Documentation Status:
Arizona:	6.53%	Full:	70.90%
Ohio:	3.98%	Stated:	21.56%
Texas:	3.74%	Limited:	3.92%
W.A. Original Combined LTV:	83.14%	None:	3.61%
Range:	15.09% - 100.00%	Non-Zero W.A. Prepayment Penalty-Term (months):	28
First Liens:	93.69%	Loans with Prepay Penalties:	79.90%
Second Liens:	6.31%	Interest Only Loans:	36.67%
Non-Balloon Loans:	72.68%	Non-Zero W.A. Interest Only Term (months):	60
Non-Zero W.A. FICO Score:	649

* Subject to a permitted variance of +/- 10%


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Originator

Originator	Number of Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		Mortgage Rates (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
American Home Mortgage		568		79,158,997		9.55		8.681		632		84.01
Harbourton Mortgage Investment		350		70,872,259		8.55		8.197		644		85.91
DHI Mortgage		436		51,491,106		6.21		8.612		651		86.58
Equity Resources		237		37,444,560		4.52		7.704		628		83.79
Other		3,066		590,247,990		71.18		8.013		653		82.34
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Collateral Type

Collateral Type	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Fixed - 15 Year		18		2,478,931		0.30		6.813		680		63.22
Fixed - 20 Year		7		321,459		0.04		11.762		636		99.99
Fixed - 30 Year		515		108,686,329		13.11		7.063		684		73.96
Balloon - 10/30		17		904,418		0.11		11.875		633		99.87
Balloon - 15/30		783		38,488,756		4.64		11.470		645		99.42
Balloon - 20/30		158		10,547,968		1.27		11.184		666		99.79
Balloon - 30/40		141		28,522,230		3.44		7.831		660		83.05
Balloon - 30/50		3		988,172		0.12		6.560		743		86.47
ARM - 6 Month		2		692,272		0.08		8.048		657		91.91
ARM - 6 Month IO		11		2,770,399		0.33		7.496		613		75.95
ARM - 1 Year/6 Month		13		2,373,638		0.29		8.219		625		84.32
ARM - 1 Year/6 Month IO		5		2,088,000		0.25		6.980		648		80.00
ARM - 1 Year/6 Month 30/40 Balloon		1		81,963		0.01		8.810		751		100.00
ARM - 1 Year/6 Month 30/50 Balloon		2		1,037,599		0.13		6.439		651		76.72
ARM - 2 Year/6 Month		1,000		149,944,492		18.08		8.546		632		84.61
ARM - 2 Year/6 Month IO		855		223,667,877		26.97		7.854		652		81.90
ARM - 2 Year/6 Month 30/40 Balloon		287		64,302,358		7.75		8.184		639		83.72
ARM - 2 Year/6 Month 30/50 Balloon		186		51,697,676		6.23		8.181		633		86.33
ARM - 3 Year/6 Month		202		31,561,577		3.81		8.327		629		84.17
ARM - 3 Year/6 Month IO		272		63,512,335		7.66		7.475		643		84.15
ARM - 3 Year/6 Month 30/40 Balloon		55		12,490,451		1.51		8.270		636		86.69
ARM - 3 Year/6 Month 30/50 Balloon		46		13,675,005		1.65		7.581		649		82.64
ARM - 5 Year/6 Month		12		2,506,935		0.30		7.569		642		73.00
ARM - 5 Year/6 Month IO		51		12,061,651		1.45		7.705		662		82.14
ARM - 5 Year/6 Month 30/40 Balloon		4		697,153		0.08		8.038		610		73.91
ARM - 5 Year/6 Month 30/50 Balloon		11		3,115,269		0.38		7.745		646		85.62
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

IO Terms

IO Terms (mos.)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0		3,463		525,114,650		63.33		8.322		648		83.61
60		1,191		303,513,162		36.60		7.759		650		82.31
120		3		587,100		0.07		8.146		626		82.41
Total:		4,657		829,214,912		100.00		8.116		649		83.14

Principal Balance at Origination

Principal Balance at Origination ($)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0.01 - 50,000.00		672		22,708,945		2.74		11.539		631		97.50
50,000.01 - 100,000.00		937		70,477,859		8.50		9.743		632		88.56
100,000.01 - 150,000.00		883		109,802,593		13.24		8.551		632		84.64
150,000.01 - 200,000.00		685		119,293,913		14.39		8.054		638		82.89
200,000.01 - 250,000.00		487		109,004,448		13.15		7.943		640		83.50
250,000.01 - 300,000.00		319		87,319,924		10.53		7.956		645		83.73
300,000.01 - 350,000.00		191		61,885,626		7.46		7.876		652		84.33
350,000.01 - 400,000.00		126		47,360,061		5.71		7.732		654		82.31
400,000.01 - 450,000.00		103		43,749,041		5.28		7.430		663		81.14
450,000.01 - 500,000.00		71		33,690,687		4.06		7.370		665		79.74
500,000.01 - 550,000.00		54		28,219,959		3.40		7.466		663		80.00
550,000.01 - 600,000.00		38		21,662,029		2.61		6.882		681		81.00
600,000.01 - 650,000.00		22		13,736,146		1.66		7.178		661		77.38
650,000.01 - 700,000.00		13		8,773,141		1.06		6.849		696		74.36
700,000.01 - 750,000.00		10		7,307,769		0.88		7.149		672		74.38
750,000.01 - 800,000.00		12		9,402,618		1.13		7.025		685		66.92
800,000.01 - 850,000.00		5		4,178,594		0.50		7.035		700		76.39
850,000.01 - 900,000.00		3		2,612,549		0.32		7.363		673		80.00
900,000.01 - 950,000.00		5		4,667,834		0.56		7.651		712		78.99
950,000.01 - 1,000,000.00		7		6,900,369		0.83		7.352		699		77.62
1,000,000.01 >=		14		16,460,810		1.99		7.406		721		73.00
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Remaining Principal Balance

Remaining Principal Balance ($)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0.01 - 50,000.00		673		22,735,052		2.74		11.541		631		97.50
50,000.01 - 100,000.00		936		70,451,751		8.50		9.742		632		88.56
100,000.01 - 150,000.00		886		110,252,121		13.30		8.547		633		84.61
150,000.01 - 200,000.00		683		119,044,316		14.36		8.052		638		82.91
200,000.01 - 250,000.00		486		108,804,517		13.12		7.947		640		83.50
250,000.01 - 300,000.00		319		87,319,924		10.53		7.956		645		83.73
300,000.01 - 350,000.00		191		61,885,626		7.46		7.876		652		84.33
350,000.01 - 400,000.00		126		47,360,061		5.71		7.732		654		82.31
400,000.01 - 450,000.00		103		43,749,041		5.28		7.430		663		81.14
450,000.01 - 500,000.00		71		33,690,687		4.06		7.370		665		79.74
500,000.01 - 550,000.00		55		28,769,649		3.47		7.479		663		80.29
550,000.01 - 600,000.00		37		21,112,339		2.55		6.850		682		80.63
600,000.01 - 650,000.00		22		13,736,146		1.66		7.178		661		77.38
650,000.01 - 700,000.00		13		8,773,141		1.06		6.849		696		74.36
700,000.01 - 750,000.00		10		7,307,769		0.88		7.149		672		74.38
750,000.01 - 800,000.00		12		9,402,618		1.13		7.025		685		66.92
800,000.01 - 850,000.00		5		4,178,594		0.50		7.035		700		76.39
850,000.01 - 900,000.00		3		2,612,549		0.32		7.363		673		80.00
900,000.01 - 950,000.00		5		4,667,834		0.56		7.651		712		78.99
950,000.01 - 1,000,000.00		7		6,900,369		0.83		7.352		699		77.62
1,000,000.01 >=		14		16,460,810		1.99		7.406		721		73.00
Total:		4,657		829,214,912		100.00		8.116		649		83.14

Remaining Term

Months Remaining	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
61 - 120		17		904,418		0.11		11.875		633		99.87
121 - 180		801		40,967,687		4.94		11.188		647		97.23
181 - 240		165		10,869,427		1.31		11.201		665		99.79
301 - 360		3,674		776,473,380		93.64		7.906		649		82.14
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Mortgage Rate

Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
5.000 - 5.499		12		4,728,643		0.57		5.331		759		50.44
5.500 - 5.999		113		49,766,147		6.00		5.722		725		64.35
6.000 - 6.499		106		30,919,658		3.73		6.230		685		81.16
6.500 - 6.999		334		87,581,037		10.56		6.738		666		79.87
7.000 - 7.499		435		98,421,340		11.87		7.212		658		82.01
7.500 - 7.999		718		164,195,509		19.80		7.712		649		81.22
8.000 - 8.499		517		105,972,295		12.78		8.183		639		83.08
8.500 - 8.999		568		107,767,499		13.00		8.698		632		84.17
9.000 - 9.499		306		48,233,750		5.82		9.181		618		88.34
9.500 - 9.999		312		44,004,033		5.31		9.730		610		88.93
10.000 - 10.499		191		20,792,044		2.51		10.215		624		93.67
10.500 - 10.999		222		20,822,969		2.51		10.713		637		97.03
11.000 - 11.499		239		15,619,941		1.88		11.209		636		98.90
11.500 - 11.999		234		13,900,115		1.68		11.756		626		99.24
12.000 - 12.499		171		8,966,747		1.08		12.223		615		99.72
12.500 - 12.999		65		3,255,768		0.39		12.681		609		98.93
13.000 - 13.499		25		954,573		0.12		13.230		604		99.85
13.500 - 13.999		14		650,334		0.08		13.783		597		99.74
14.000 - 14.499		23		867,562		0.10		14.333		593		99.99
14.500 - 14.999		44		1,520,925		0.18		14.723		590		99.94
15.000 - 15.499		6		202,279		0.02		15.015		594		100.00
15.500 - 15.999		1		26,780		0.00		15.875		595		100.00
16.500 - 16.999		1		44,962		0.01		16.750		598		100.00
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Original Combined Loan-to-Value Ratio

Original Combined Loan-to-Value Ratio (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Less than or equal to 50.00		89		20,431,932		2.46		6.568		687		40.65
50.01 - 55.00		30		8,447,555		1.02		6.694		674		52.82
55.01 - 60.00		47		10,276,267		1.24		7.062		656		58.00
60.01 - 65.00		80		20,925,007		2.52		6.775		678		63.46
65.01 - 70.00		91		20,069,419		2.42		7.445		644		68.55
70.01 - 75.00		107		29,110,921		3.51		7.260		651		73.80
75.01 - 80.00		1,860		405,176,738		48.86		7.702		650		79.90
80.01 - 85.00		199		41,349,399		4.99		8.221		615		84.26
85.01 - 90.00		325		65,556,446		7.91		8.200		641		89.47
90.01 - 95.00		268		53,542,874		6.46		8.090		653		94.61
95.01 - 100.00		1,561		154,328,354		18.61		9.930		645		99.95
Total:		4,657		829,214,912		100.00		8.116		649		83.14

FICO Score at Origination

FICO Score At Origination	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1 - 499		1		79,896		0.01		10.125		492		100.00
500 - 524		1		99,865		0.01		8.000		505		74.07
525 - 549		81		13,061,849		1.58		9.114		544		74.71
550 - 574		163		27,016,503		3.26		8.970		563		77.88
575 - 599		538		72,286,267		8.72		9.530		588		84.84
600 - 624		1,063		151,418,001		18.26		8.671		612		85.16
625 - 649		1,084		188,802,071		22.77		8.123		638		84.75
650 - 674		890		163,584,443		19.73		7.885		661		84.47
675 - 699		441		98,519,714		11.88		7.501		686		82.56
700 - 724		202		52,870,400		6.38		7.220		711		80.74
725 - 749		90		25,518,440		3.08		7.066		737		76.55
750 - 774		54		19,365,256		2.34		7.150		763		78.50
775 - 799		41		14,700,563		1.77		6.171		786		68.91
800 - 824		8		1,891,643		0.23		5.857		808		56.77
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Geographic Distribution*

Location	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
California		786		262,013,023		31.60		7.439		673		78.60
Florida		495		86,372,365		10.42		7.898		642		82.32
Arizona		345		54,146,667		6.53		8.131		639		84.39
Ohio		273		33,030,892		3.98		8.337		630		86.71
Texas		310		30,989,474		3.74		8.754		642		86.99
Illinois		186		30,739,553		3.71		8.869		634		85.64
Michigan		223		28,560,249		3.44		8.975		643		88.31
Maryland		112		25,293,074		3.05		8.219		635		82.93
Nevada		129		24,543,914		2.96		8.258		645		85.16
Washington		139		24,493,397		2.95		8.133		644		84.29
Minnesota		161		23,971,915		2.89		8.371		638		86.76
Virginia		111		20,331,016		2.45		8.379		636		84.69
Georgia		108		14,817,577		1.79		8.665		640		86.34
Wisconsin		127		14,716,239		1.77		8.665		639		87.19
Oregon		78		13,570,046		1.64		7.878		649		83.11
Colorado		87		13,459,609		1.62		8.153		647		86.73
Pennsylvania		100		13,400,300		1.62		8.880		629		88.74
New Jersey		46		11,045,596		1.33		8.624		627		82.63
Tennessee		97		10,718,849		1.29		8.474		635		89.08
Indiana		97		10,357,512		1.25		8.868		621		87.39
Missouri		80		9,295,789		1.12		9.200		626		90.79
Kentucky		63		7,095,753		0.86		8.610		635		85.58
New York		30		6,904,017		0.83		8.290		645		79.00
North Carolina		61		6,729,513		0.81		9.242		625		87.05
Connecticut		30		5,829,141		0.70		8.522		615		81.20
Louisiana		41		4,332,933		0.52		9.268		626		88.54
South Carolina		33		4,057,262		0.49		9.557		629		85.40
Utah		23		4,025,685		0.49		7.935		643		88.42
Alabama		30		3,790,719		0.46		8.932		618		86.37
New Mexico		31		3,771,226		0.45		9.067		619		82.00
Mississippi		33		3,564,830		0.43		9.044		620		89.73
Arkansas		29		3,395,997		0.41		8.771		639		90.66
Iowa		33		2,758,889		0.33		9.526		617		90.61
Oklahoma		28		2,232,276		0.27		8.825		628		87.23

*Geographic Distribution continued on the next page


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Geographic Distribution (Continued)

Location	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Idaho		17		2,026,290		0.24		8.533		642		81.06
Massachusetts		12		2,012,055		0.24		8.874		628		84.25
Hawaii		5		1,758,144		0.21		7.397		671		71.91
District of Columbia		6		1,707,280		0.21		8.286		638		71.81
Montana		9		1,661,555		0.20		9.355		592		82.09
West Virginia		9		1,274,662		0.15		9.120		648		84.97
Delaware		7		973,315		0.12		8.907		632		93.67
Kansas		11		820,873		0.10		9.637		641		91.32
Nebraska		7		552,444		0.07		8.635		640		86.79
Wyoming		3		427,901		0.05		9.625		600		82.64
New Hampshire		3		415,060		0.05		8.875		616		86.29
Vermont		2		408,422		0.05		8.485		644		87.19
South Dakota		6		341,250		0.04		9.381		636		93.40
Maine		2		268,552		0.03		7.781		656		96.25
Alaska		1		150,400		0.02		9.625		542		80.00
North Dakota		2		61,413		0.01		11.257		638		100.00
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Occupancy Status

Occupancy Status	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Primary		4,533		809,785,395		97.66		8.113		648		83.20
Investment		102		15,652,356		1.89		8.280		664		80.43
Second Home		22		3,777,160		0.46		7.957		660		81.14
Total:		4,657		829,214,912		100.00		8.116		649		83.14

Documentation Type

Program	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Full		3,426		587,929,559		70.90		8.072		641		83.80
Stated		930		178,813,445		21.56		8.179		665		81.71
Limited		108		32,528,676		3.92		8.293		672		81.72
No Documentation		193		29,943,231		3.61		8.399		671		80.12
Total:		4,657		829,214,912		100.00		8.116		649		83.14

Loan Purpose

Purpose	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Purchase		3,068		477,551,961		57.59		8.364		650		85.37
Refinance - Cashout		1,259		283,953,406		34.24		7.805		645		80.03
Refinance - Rate Term		330		67,709,544		8.17		7.668		658		80.42
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Property Type

Property Type	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Single Family Residence		3,005		543,006,485		65.48		8.112		650		82.63
PUD		1,254		219,076,172		26.42		8.045		645		84.05
Condo		288		47,825,274		5.77		8.296		652		84.84
2-4 Family		110		19,306,980		2.33		8.566		647		82.93
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Rate Adjustment*

Month & Year of Next Rate Adjustment	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2007-05		4		792,399		0.12		8.056		596		69.84
2007-06		3		728,582		0.11		7.653		661		85.76
2007-07		6		1,941,690		0.30		7.406		617		80.45
2007-11		4		353,103		0.06		9.255		622		85.61
2007-12		10		2,812,416		0.44		7.189		646		79.61
2008-01		4		1,525,780		0.24		7.228		640		84.09
2008-02		4		1,225,400		0.19		8.256		626		86.60
2008-03		1		195,238		0.03		9.600		634		94.96
2008-06		2		192,756		0.03		8.668		601		90.00
2008-07		8		1,568,746		0.25		7.412		647		82.40
2008-08		13		3,030,727		0.47		8.279		634		75.21
2008-09		42		10,033,874		1.57		8.092		642		82.46
2008-10		122		25,833,406		4.05		8.297		637		81.67
2008-11		707		146,882,766		23.01		8.206		641		82.99
2008-12		695		145,387,047		22.78		8.135		643		83.81
2009-01		596		125,205,378		19.62		8.098		642		84.38
2009-02		141		30,946,966		4.85		7.966		650		82.32
2009-08		1		312,102		0.05		7.625		662		80.00
2009-09		4		677,909		0.11		8.484		624		84.11
2009-10		27		4,810,726		0.75		8.126		634		82.21
2009-11		158		32,696,217		5.12		8.022		635		84.67
2009-12		207		43,961,656		6.89		7.678		641		84.34
2010-01		146		32,590,665		5.11		7.629		646		84.81
2010-02		32		6,190,092		0.97		7.896		616		80.26
2011-09		3		536,797		0.08		8.232		648		78.71
2011-11		20		4,027,422		0.63		8.270		635		82.88
2011-12		24		5,178,546		0.81		7.618		658		79.60
2012-01		27		6,965,642		1.09		7.307		653		81.98
2012-02		4		1,672,600		0.26		8.110		696		79.31
Total:		3,015		638,276,649		100.00		8.055		642		83.49

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Gross Margin*

Gross Margin (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2.000 - 2.499		5		1,079,540		0.17		7.057		676		79.36
2.500 - 2.999		4		705,540		0.11		7.548		645		80.00
3.000 - 3.499		2		1,310,176		0.21		7.847		636		80.00
4.000 - 4.499		18		2,970,954		0.47		7.687		642		84.98
4.500 - 4.999		31		7,652,324		1.20		7.245		650		75.97
5.000 - 5.499		1,739		382,446,861		59.92		7.736		645		78.47
5.500 - 5.999		405		85,117,886		13.34		8.228		630		86.88
6.000 - 6.499		70		16,059,914		2.52		8.317		635		85.46
6.500 - 6.999		655		126,588,891		19.83		8.793		642		95.94
7.000 - 7.499		42		6,496,789		1.02		9.130		633		88.92
7.500 - 7.999		38		6,562,060		1.03		9.473		613		89.78
8.000 - 8.499		6		1,285,712		0.20		9.892		610		91.73
Total:		3,015		638,276,649		100.00		8.055		642		83.49

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Maximum Mortgage Rate*

Maximum Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
11.000 - 11.499		3		560,680		0.09		6.503		629		80.00
11.500 - 11.999		22		6,440,775		1.01		5.787		680		78.30
12.000 - 12.499		73		21,464,087		3.36		6.246		675		82.01
12.500 - 12.999		260		70,865,937		11.10		6.736		665		79.84
13.000 - 13.499		381		88,024,812		13.79		7.209		658		81.81
13.500 - 13.999		626		146,420,292		22.94		7.709		649		81.35
14.000 - 14.499		444		96,069,917		15.05		8.180		639		83.15
14.500 - 14.999		464		93,705,521		14.68		8.692		632		83.70
15.000 - 15.499		260		43,629,480		6.84		9.179		617		88.29
15.500 - 15.999		240		38,074,813		5.97		9.706		604		88.73
16.000 - 16.499		90		13,162,301		2.06		10.191		599		92.06
16.500 - 16.999		73		9,964,227		1.56		10.660		601		95.29
17.000 - 17.499		33		4,611,390		0.72		11.173		595		99.40
17.500 - 17.999		27		3,107,387		0.49		11.624		614		99.24
18.000 - 18.499		12		1,544,160		0.24		12.150		590		100.00
18.500 - 18.999		3		194,826		0.03		12.651		588		96.05
19.000 - 19.499		1		54,962		0.01		13.049		595		100.00
19.500 - 19.999		2		265,900		0.04		13.786		589		100.00
20.500 - 20.999		1		115,182		0.02		14.625		586		100.00
Total:		3,015		638,276,649		100.00		8.055		642		83.49

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Minimum Mortgage Rate*

Minimum Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2.500 - 2.999		2		302,740		0.05		7.875		638		80.00
4.500 - 4.999		1		49,896		0.01		7.875		689		20.83
5.000 - 5.499		8		1,792,020		0.28		7.302		625		71.39
5.500 - 5.999		28		7,885,568		1.24		6.206		671		80.00
6.000 - 6.499		75		21,655,920		3.39		6.264		675		82.02
6.500 - 6.999		263		71,093,845		11.14		6.751		665		80.06
7.000 - 7.499		379		87,692,593		13.74		7.218		658		81.81
7.500 - 7.999		624		146,573,689		22.96		7.710		649		81.39
8.000 - 8.499		441		94,863,829		14.86		8.181		639		83.15
8.500 - 8.999		459		92,570,217		14.50		8.698		632		83.68
9.000 - 9.499		259		43,933,930		6.88		9.178		617		88.31
9.500 - 9.999		238		37,398,468		5.86		9.720		604		88.81
10.000 - 10.499		89		12,933,946		2.03		10.192		600		92.36
10.500 - 10.999		72		10,075,443		1.58		10.688		608		95.54
11.000 - 11.499		32		4,546,458		0.71		11.174		593		99.39
11.500 - 11.999		26		2,733,059		0.43		11.743		590		99.14
12.000 - 12.499		12		1,544,160		0.24		12.150		590		100.00
12.500 - 12.999		3		194,826		0.03		12.651		588		96.05
13.000 - 13.499		1		54,962		0.01		13.049		595		100.00
13.500 - 13.999		2		265,900		0.04		13.786		589		100.00
14.500 - 14.999		1		115,182		0.02		14.625		586		100.00
Total:		3,015		638,276,649		100.00		8.055		642		83.49

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Initial Periodic Rate Cap*

Initial Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1.000		12		3,320,089		0.52		7.600		619		79.10
1.500		1		195,238		0.03		9.600		634		94.96
2.000		25		6,376,663		1.00		7.569		635		80.80
2.250		1		146,597		0.02		7.875		619		80.00
3.000		2,966		626,514,564		98.16		8.061		642		83.53
3.050		1		99,817		0.02		8.500		644		100.00
4.000		1		154,911		0.02		12.000		597		100.00
5.000		2		473,430		0.07		8.317		622		87.73
6.000		6		995,339		0.16		7.916		635		77.63
Total:		3,015		638,276,649		100.00		8.055		642		83.49

*ARM Loans Only

Subsequent Periodic Rate Cap*

Subsequent Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1.000		3,007		636,999,006		99.80		8.055		642		83.48
1.500		4		683,782		0.11		8.620		626		88.41
2.000		3		437,860		0.07		7.566		658		80.00
3.000		1		156,000		0.02		8.750		604		80.00
Total:		3,015		638,276,649		100.00		8.055		642		83.49

*ARM Loans Only

Lifetime Periodic Cap*

Lifetime Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
3.000 - 3.499		1		229,600		0.04		8.250		615		80.00
6.000 - 6.499		3,003		634,961,653		99.48		8.052		642		83.48
6.500 - 6.999		5		1,749,237		0.27		8.239		641		79.51
7.000 - 7.499		6		1,336,159		0.21		9.167		670		92.88
Total:		3,015		638,276,649		100.00		8.055		642		83.49

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE TOTAL COLLATERAL

Original Prepayment Charge Term

Prepayment Penalty Term (mos.)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0		1,152		166,697,720		20.10		8.826		639		85.30
6		6		2,367,468		0.29		7.775		680		78.03
12		181		44,517,025		5.37		8.340		649		83.45
13		4		1,065,519		0.13		7.595		671		80.45
24		2,112		371,627,715		44.82		8.258		646		84.57
36		1,081		220,890,960		26.64		7.379		663		78.94
48		120		21,749,886		2.62		7.363		628		84.69
60		1		298,620		0.04		6.500		652		80.00
Total:		4,657		829,214,912		100.00		8.116		649		83.14


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

SUMMARY - GROUP I*

Number of Mortgage Loans:	2,479	Index Type:
Aggregate Principal Balance:	$364,444,648	6 Month LIBOR:	78.39%
Conforming Principal Balance Loans:	$364,444,648	Fixed Rate:	21.61%
Average Principal Balance:	$147,013	W.A. Initial Periodic Cap:	2.983%
Range:	$10,295 - $541,518	W.A. Subsequent Periodic Cap:	1.002%
W.A. Coupon:	8.303%	W.A. Lifetime Rate Cap:	6.001%
Range:	5.125% - 16.750%	Property Type:
W.A. Gross Margin:	5.805%	Single Family:	68.09%
Range:	2.250% - 8.260%	PUD:	23.27%
W.A. Remaining Term (months):	350	Condo:	5.43%
Range (months):	172-360	2-4 Family:	3.21%
W.A. Seasoning (months):	2	Occupancy Status:
Latest Maturity Date:	February 1, 2037	Primary:	96.01%
State Concentration (Top 5):		Investment:	3.14%
California:	15.47%	Second Home:	0.85%
Florida:	10.15%	Documentation Status:
Arizona:	8.64%	Full:	81.89%
Minnesota:	5.66%	Stated:	15.56%
Illinois:	5.09%	Limited:	0.53%
W.A. Original Combined LTV:	84.54%	None:	2.02%
Range:	15.09% - 100.00%	Non-Zero W.A. Prepayment Penalty Term (months):		28
First Liens:	95.60%	Loans with Prepay Penalties:	80.10%
Second Liens:	4.40%	Interest Only Loans:	26.90%
Non-Balloon Loans:	69.92%	Non-Zero W.A. Interest Only Term (months):	60
Non-Zero W.A. FICO Score:	638

* Subject to a permitted variance of +/- 10%


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Originator

Originator	Number of Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		Mortgage Rates (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Harbourton Mortgage Investment		238		42,353,993		11.62		8.263		639		86.14
DHI Mortgage		225		21,046,395		5.77		8.687		642		86.91
Paragon Home Lending		138		18,448,295		5.06		8.624		637		89.37
Advantage One Mortgage Corp		72		16,841,739		4.62		6.906		663		78.34
Other		1,806		265,754,226		72.92		8.345		637		84.16
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Collateral Type

Collateral Type	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance			W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Fixed - 15 Year		10		1,441,561	0.40				6.931		701		68.65
Fixed - 20 Year		2		64,626	0.02				11.066		636		100.00
Fixed - 30 Year		301		46,052,110	12.64				7.739		663		79.47
Balloon - 15/30		363		13,279,879	3.64				11.573		638		99.65
Balloon - 20/30		57		2,357,600	0.65				11.332		641		99.63
Balloon - 30/40		84		15,335,474	4.21				7.976		655		84.27
Balloon - 30/50		2		238,345	0.07				7.144		632		77.58
ARM - 6 Month IO		7		1,967,500	0.54				6.927		617		73.75
ARM - 1 Year/6 Month		5		1,114,500	0.31				8.662		597		78.60
ARM - 1 Year/6 Month IO		2		484,000	0.13				6.606		655		80.00
ARM - 1 Year/6 Month 30/40 Balloon		1		81,963	0.02				8.810		751		100.00
ARM - 1 Year/6 Month 30/50 Balloon		1		187,834	0.05				8.990		577		85.00
ARM - 2 Year/6 Month		675		92,242,754	25.31				8.643		627		85.10
ARM - 2 Year/6 Month IO		366		71,670,735	19.67				7.855		641		82.96
ARM - 2 Year/6 Month 30/40 Balloon		176		34,788,055	9.55				8.288		628		84.15
ARM - 2 Year/6 Month 30/50 Balloon		121		27,544,064	7.56				8.290		633		88.21
ARM - 3 Year/6 Month		106		15,100,478	4.14				8.438		632		86.27
ARM - 3 Year/6 Month IO		102		19,487,256	5.35				7.809		644		84.36
ARM - 3 Year/6 Month 30/40 Balloon		39		7,893,445	2.17				8.304		623		85.66
ARM - 3 Year/6 Month 30/50 Balloon		25		5,970,908	1.64				7.989		643		84.83
ARM - 5 Year/6 Month		5		778,423	0.21				8.355		624		82.25
ARM - 5 Year/6 Month IO		20		4,431,352	1.22				7.780		660		85.62
ARM - 5 Year/6 Month 30/40 Balloon		4		697,153	0.19				8.038		610		73.91
ARM - 5 Year/6 Month 30/50 Balloon		5		1,234,634	0.34				7.512		665		85.09
Total:		2,479		364,444,648		100.00	8.303				638		84.54

IO Terms

IO Terms (mos.)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0		1,982		266,403,806		73.10		8.482		637		85.06
60		496		97,899,542		26.86		7.818		642		83.15
120		1		141,300		0.04		7.513		663		90.00
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Principal Balance at Origination

Principal Balance at Origination ($)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0.01 - 50,000.00		397		13,106,270		3.60		11.622		628		97.90
50,000.01 - 100,000.00		464		35,322,057		9.69		9.399		626		86.55
100,000.01 - 150,000.00		578		72,263,305		19.83		8.458		631		84.62
150,000.01 - 200,000.00		417		72,187,856		19.81		8.061		639		83.22
200,000.01 - 250,000.00		275		61,754,331		16.94		7.998		637		83.70
250,000.01 - 300,000.00		164		44,767,660		12.28		7.956		639		84.42
300,000.01 - 350,000.00		99		31,983,969		8.78		7.855		651		83.83
350,000.01 - 400,000.00		59		22,227,503		6.10		7.547		655		82.76
400,000.01 - 450,000.00		24		9,818,594		2.69		7.418		670		81.42
450,000.01 - 500,000.00		1		471,586		0.13		6.500		682		80.00
500,000.01 - 550,000.00		1		541,518		0.15		6.800		703		80.00
Total:		2,479		364,444,648		100.00		8.303		638		84.54

Remaining Principal Balance

Remaining Principal Balance ($)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0.01 - 50,000.00		397		13,106,270		3.60		11.622		628		97.90
50,000.01 - 100,000.00		464		35,322,057		9.69		9.399		626		86.55
100,000.01 - 150,000.00		580		72,563,164		19.91		8.452		631		84.58
150,000.01 - 200,000.00		415		71,887,998		19.73		8.065		639		83.25
200,000.01 - 250,000.00		275		61,754,331		16.94		7.998		637		83.70
250,000.01 - 300,000.00		164		44,767,660		12.28		7.956		639		84.42
300,000.01 - 350,000.00		99		31,983,969		8.78		7.855		651		83.83
350,000.01 - 400,000.00		59		22,227,503		6.10		7.547		655		82.76
400,000.01 - 450,000.00		24		9,818,594		2.69		7.418		670		81.42
450,000.01 - 500,000.00		1		471,586		0.13		6.500		682		80.00
500,000.01 - 550,000.00		1		541,518		0.15		6.800		703		80.00
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Remaining Term

Months Remaining	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
121 - 180		373		14,721,440		4.04		11.118		644		96.62
181 - 240		59		2,422,226		0.66		11.325		641		99.64
301 - 360		2,047		347,300,981		95.30		8.163		638		83.93
Total:		2,479		364,444,648		100.00		8.303		638		84.54

Mortgage Rate

Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
5.000 - 5.499		3		1,056,029		0.29		5.256		779		44.42
5.500 - 5.999		36		9,303,812		2.55		5.742		726		65.64
6.000 - 6.499		47		11,087,579		3.04		6.225		673		77.60
6.500 - 6.999		150		31,789,822		8.72		6.742		672		80.40
7.000 - 7.499		223		42,763,256		11.73		7.228		659		83.09
7.500 - 7.999		384		71,690,498		19.67		7.715		644		81.98
8.000 - 8.499		282		49,783,035		13.66		8.195		631		84.30
8.500 - 8.999		359		56,314,906		15.45		8.707		623		84.91
9.000 - 9.499		190		25,895,580		7.11		9.182		614		88.08
9.500 - 9.999		201		26,647,769		7.31		9.724		605		88.13
10.000 - 10.499		100		9,327,001		2.56		10.203		613		93.08
10.500 - 10.999		111		10,480,333		2.88		10.693		618		97.22
11.000 - 11.499		98		6,001,994		1.65		11.208		615		98.37
11.500 - 11.999		104		5,273,530		1.45		11.748		611		98.89
12.000 - 12.499		98		3,999,355		1.10		12.194		615		99.55
12.500 - 12.999		35		1,242,652		0.34		12.654		607		100.00
13.000 - 13.499		17		541,081		0.15		13.222		608		99.74
13.500 - 13.999		6		161,110		0.04		13.775		596		98.95
14.000 - 14.499		8		218,460		0.06		14.284		593		99.99
14.500 - 14.999		24		774,426		0.21		14.718		590		99.88
15.000 - 15.499		2		47,457		0.01		15.000		589		100.00
16.500 - 16.999		1		44,962		0.01		16.750		598		100.00
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Original Combined Loan-to-Value Ratio

Original Combined Loan-to-Value Ratio (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Less than or equal to 50.00		47		8,093,463		2.22		6.853		678		40.05
50.01 - 55.00		19		3,263,777		0.90		7.974		625		53.56
55.01 - 60.00		22		4,076,085		1.12		7.825		633		57.69
60.01 - 65.00		45		8,146,429		2.24		7.580		636		63.46
65.01 - 70.00		53		9,935,837		2.73		7.635		629		68.69
70.01 - 75.00		62		12,443,847		3.41		7.803		634		73.82
75.01 - 80.00		887		145,813,546		40.01		7.833		639		79.82
80.01 - 85.00		127		22,856,580		6.27		8.426		610		84.37
85.01 - 90.00		211		37,884,218		10.40		8.272		636		89.58
90.01 - 95.00		182		34,737,755		9.53		7.998		653		94.55
95.01 - 100.00		824		77,193,112		21.18		9.741		640		99.93
Total:		2,479		364,444,648		100.00		8.303		638		84.54

FICO Score at Origination

FICO Score At Origination	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
525 - 549		54		8,655,398		2.37		9.139		543		76.39
550 - 574		101		16,164,874		4.44		8.933		563		77.84
575 - 599		308		37,695,878		10.34		9.601		588		84.77
600 - 624		664		86,005,323		23.60		8.745		612		85.97
625 - 649		556		82,849,366		22.73		8.185		637		85.86
650 - 674		409		62,953,461		17.27		7.921		661		85.84
675 - 699		201		34,993,034		9.60		7.489		686		83.38
700 - 724		95		17,082,372		4.69		7.286		712		84.95
725 - 749		49		10,175,388		2.79		7.082		738		82.18
750 - 774		23		3,736,806		1.03		7.351		763		86.77
775 - 799		15		3,411,208		0.94		6.137		786		60.59
800 - 824		4		721,541		0.20		6.490		810		69.72
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Geographic Distribution*

Location	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
California		211		56,377,317		15.47		7.365		658		76.38
Florida		225		36,975,869		10.15		7.976		633		82.38
Arizona		207		31,480,289		8.64		8.053		639		85.23
Minnesota		141		20,613,690		5.66		8.379		636		87.30
Illinois		113		18,554,473		5.09		8.995		626		87.29
Michigan		151		18,340,179		5.03		8.948		640		88.92
Texas		169		14,565,408		4.00		8.861		633		87.39
Washington		87		14,426,995		3.96		8.123		645		84.98
Wisconsin		111		12,705,708		3.49		8.635		640		86.49
Maryland		62		12,238,766		3.36		8.246		639		83.95
Nevada		60		12,157,567		3.34		7.971		649		85.49
Ohio		105		11,733,944		3.22		8.734		628		87.79
Virginia		53		9,781,834		2.68		8.265		634		84.44
Oregon		49		8,121,751		2.23		7.771		654		83.84
Georgia		69		8,121,044		2.23		8.852		633		85.34
Colorado		53		8,109,415		2.23		8.151		645		88.76
Pennsylvania		61		7,554,377		2.07		8.947		627		88.77
Indiana		76		7,448,664		2.04		8.854		622		88.93
Tennessee		57		6,267,412		1.72		8.494		640		90.26
New Jersey		28		6,214,657		1.71		8.422		620		81.36
Missouri		51		5,810,563		1.59		9.094		623		90.91
Kentucky		50		4,264,701		1.17		9.085		623		88.26
North Carolina		35		3,254,378		0.89		9.406		621		88.57
Utah		18		3,065,879		0.84		8.003		645		89.42
Alabama		23		2,668,101		0.73		8.965		619		86.03
Iowa		26		2,298,583		0.63		9.551		614		90.46
Connecticut		18		2,236,327		0.61		8.025		634		77.46
South Carolina		22		2,133,998		0.59		9.421		625		86.43
Louisiana		20		1,873,877		0.51		9.916		612		90.73
New York		9		1,754,636		0.48		8.213		642		80.42
Oklahoma		20		1,522,610		0.42		9.178		620		88.50
Massachusetts		8		1,363,313		0.37		8.519		629		85.96
New Mexico		14		1,344,502		0.37		8.967		620		84.68
Mississippi		18		1,313,365		0.36		9.792		604		92.63

*Geographic Distribution continued on the next page


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Geographic Distribution (Continued)

Location	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Idaho		10		1,100,481		0.30		8.449		660		82.00
District of Columbia		4		1,032,484		0.28		8.189		611		60.35
Montana		6		945,003		0.26		8.844		612		82.25
West Virginia		7		764,737		0.21		9.416		655		88.28
Arkansas		8		718,292		0.20		9.552		625		98.63
Delaware		2		581,972		0.16		8.033		643		94.56
Kansas		6		555,093		0.15		9.253		638		89.16
Nebraska		7		552,444		0.15		8.635		640		86.79
Hawaii		1		541,518		0.15		6.800		703		80.00
Vermont		2		408,422		0.11		8.485		644		87.19
Wyoming		2		256,921		0.07		10.540		613		84.40
New Hampshire		1		130,990		0.04		7.125		649		80.00
Maine		1		100,687		0.03		8.875		594		90.00
North Dakota		2		61,413		0.02		11.257		638		100.00
Total:		2,479		364,444,648		100.00		8.303		638		84.54

Occupancy Status

Occupancy Status	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Primary		2,383		349,918,427		96.01		8.307		637		84.71
Investment		79		11,437,508		3.14		8.238		670		80.58
Second Home		17		3,088,713		0.85		8.064		660		80.16
Total:		2,479		364,444,648		100.00		8.303		638		84.54

Documentation Type

Program	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Full		2,072		298,433,464		81.89		8.316		633		85.80
Stated Documentation		346		56,723,612		15.56		8.253		658		79.19
No Documentation		49		7,373,331		2.02		8.186		692		76.30
Limited		12		1,914,241		0.53		8.298		645		79.59
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Loan Purpose

Purpose	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Refinance - Cashout		841		162,520,427		44.59		8.100		637		82.33
Purchase		1,375		157,607,784		43.25		8.566		638		86.75
Refinance - Rate Term		263		44,316,436		12.16		8.114		644		84.80
Total:		2,479		364,444,648		100.00		8.303		638		84.54

Property Type

Property Type	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Single Family Residence		1,693		248,145,561		68.09		8.335		637		84.30
PUD		582		84,806,120		23.27		8.123		640		85.27
Condo		132		19,790,393		5.43		8.388		646		85.44
2-4 Family		72		11,702,574		3.21		8.792		637		83.02
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Rate Adjustment*

Month & Year of Next Rate Adjustment	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2007-05		2		401,000		0.14		7.435		595		60.19
2007-06		1		376,000		0.13		6.375		691		80.00
2007-07		4		1,190,500		0.42		6.931		601		76.35
2007-12		5		1,103,062		0.39		7.173		648		78.61
2008-01		1		187,834		0.07		8.990		577		85.00
2008-02		3		577,400		0.20		9.806		570		82.79
2008-06		1		86,062		0.03		9.000		590		90.00
2008-07		5		756,381		0.26		8.217		634		82.35
2008-08		9		1,366,943		0.48		8.457		618		80.28
2008-09		24		4,782,910		1.67		8.413		617		85.16
2008-10		77		12,834,892		4.49		8.311		632		81.53
2008-11		421		70,706,785		24.75		8.434		633		84.93
2008-12		390		64,847,397		22.70		8.262		632		84.30
2009-01		342		58,968,837		20.64		8.194		632		85.53
2009-02		69		11,895,401		4.16		8.086		646		84.36
2009-08		1		312,102		0.11		7.625		662		80.00
2009-09		3		399,200		0.14		8.473		633		80.00
2009-10		12		1,565,330		0.55		8.404		636		83.69
2009-11		75		13,788,149		4.83		8.263		632		85.77
2009-12		103		18,611,222		6.51		7.981		640		86.22
2010-01		63		11,172,352		3.91		8.026		643		84.66
2010-02		15		2,603,732		0.91		8.375		611		79.97
2011-09		2		384,350		0.13		7.580		675		78.20
2011-11		10		1,950,822		0.68		8.135		637		88.71
2011-12		11		2,456,577		0.86		7.591		669		79.68
2012-01		9		1,792,812		0.63		7.932		648		88.00
2012-02		2		557,000		0.19		7.552		620		77.94
Total:		1,660		285,675,052		100.00		8.242		633		84.63

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Gross Margin*

Gross Margin (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2.000 - 2.499		2		360,676		0.13		7.346		710		78.08
2.500 - 2.999		1		194,800		0.07		7.625		673		80.00
4.000 - 4.499		11		1,447,038		0.51		7.603		649		88.94
4.500 - 4.999		17		4,284,431		1.50		7.202		643		73.49
5.000 - 5.499		830		140,394,052		49.14		7.891		633		77.65
5.500 - 5.999		264		48,744,491		17.06		8.349		625		86.93
6.000 - 6.499		43		7,829,341		2.74		8.410		628		86.09
6.500 - 6.999		434		73,475,677		25.72		8.771		640		96.28
7.000 - 7.499		25		3,753,172		1.31		9.090		626		89.74
7.500 - 7.999		28		4,183,146		1.46		9.415		607		87.92
8.000 - 8.499		5		1,008,229		0.35		9.793		628		97.71
Total:		1,660		285,675,052		100.00		8.242		633		84.63

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Maximum Mortgage Rate*

Maximum Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
11.000 - 11.499		1		229,600		0.08		8.250		615		80.00
11.500 - 11.999		7		1,411,763		0.49		5.794		701		79.42
12.000 - 12.499		31		7,073,307		2.48		6.257		663		78.99
12.500 - 12.999		110		22,551,687		7.89		6.746		668		80.55
13.000 - 13.499		186		36,348,921		12.72		7.225		658		82.79
13.500 - 13.999		329		62,512,463		21.88		7.713		643		82.15
14.000 - 14.499		238		43,693,011		15.29		8.197		630		84.54
14.500 - 14.999		288		46,870,181		16.41		8.693		621		84.37
15.000 - 15.499		163		23,211,623		8.13		9.174		612		87.82
15.500 - 15.999		159		23,135,618		8.10		9.708		601		88.67
16.000 - 16.499		53		6,610,021		2.31		10.198		598		92.59
16.500 - 16.999		48		6,742,373		2.36		10.680		605		96.64
17.000 - 17.499		24		2,970,214		1.04		11.206		595		99.54
17.500 - 17.999		17		1,774,127		0.62		11.736		588		99.10
18.000 - 18.499		5		496,166		0.17		12.126		593		100.00
18.500 - 18.999		1		43,978		0.02		12.750		597		100.00
Total:		1,660		285,675,052		100.00		8.242		633		84.63

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Minimum Mortgage Rate*

Minimum Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
5.000 - 5.499		3		427,755		0.15		8.348		617		77.34
5.500 - 5.999		12		2,577,846		0.90		6.778		672		82.84
6.000 - 6.499		33		7,265,139		2.54		6.313		662		79.09
6.500 - 6.999		114		23,166,595		8.11		6.794		667		80.68
7.000 - 7.499		184		35,982,887		12.60		7.245		658		82.74
7.500 - 7.999		330		62,690,713		21.94		7.714		643		82.19
8.000 - 8.499		236		43,200,462		15.12		8.197		630		84.49
8.500 - 8.999		285		46,307,829		16.21		8.703		621		84.34
9.000 - 9.499		161		22,984,915		8.05		9.177		612		87.98
9.500 - 9.999		157		22,795,193		7.98		9.716		601		88.61
10.000 - 10.499		52		6,381,666		2.23		10.199		599		93.22
10.500 - 10.999		47		6,674,499		2.34		10.687		605		96.76
11.000 - 11.499		23		2,905,282		1.02		11.207		591		99.53
11.500 - 11.999		17		1,774,127		0.62		11.736		588		99.10
12.000 - 12.499		5		496,166		0.17		12.126		593		100.00
12.500 - 12.999		1		43,978		0.02		12.750		597		100.00
Total:		1,660		285,675,052		100.00		8.242		633		84.63

*ARM Loans Only

Initial Periodic Rate Cap*

Initial Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1.000		7		1,967,500		0.69		6.927		617		73.75
2.000		12		2,364,352		0.83		8.292		617		81.94
2.250		1		146,597		0.05		7.875		619		80.00
3.000		1,637		280,631,123		98.23		8.251		634		84.75
5.000		1		229,600		0.08		8.250		615		80.00
6.000		2		335,879		0.12		8.348		608		72.99
Total:		1,660		285,675,052		100.00		8.242		633		84.63

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Subsequent Periodic Rate Cap*

Subsequent Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1.000		1,656		285,030,507		99.77		8.242		633		84.63
1.500		3		488,544		0.17		8.229		623		85.80
3.000		1		156,000		0.05		8.750		604		80.00
Total:		1,660		285,675,052		100.00		8.242		633		84.63

*ARM Loans Only

Lifetime Periodic Cap*

Lifetime Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
3.000 - 3.499		1		229,600		0.08		8.250		615		80.00
6.000 - 6.499		1,653		284,322,805		99.53		8.243		633		84.64
6.500 - 6.999		2		356,053		0.12		7.493		631		74.24
7.000 - 7.499		4		766,593		0.27		8.284		623		88.87
Total:		1,660		285,675,052		100.00		8.242		633		84.63

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP I COLLATERAL

Original Prepayment Charge Term

Prepayment Penalty Term (mos.)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0		582		72,532,349		19.90		8.893		632		86.14
12		94		19,372,217		5.32		8.347		641		84.27
13		2		372,500		0.10		7.300		657		83.79
24		1,152		164,577,814		45.16		8.370		634		85.12
36		649		107,589,769		29.52		7.799		649		82.64
Total:		2,479		364,444,648		100.00		8.303		638		84.54


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

SUMMARY - GROUP II POOL*

Number of Mortgage Loans	2,178	Index Type:
Aggregate Principal Balance	$464,770,264	6 Month LIBOR:	75.87%
Conforming Principal Balance Loans	$276,210,291	Fixed Rate:	24.13%
Average Principal Balance:	$213,393	W.A. Initial Periodic Cap:	2.988%
Range:	$10,681 - $1,480,000	W.A. Subsequent Periodic Cap:	1.002%
W.A. Coupon:	7.969%	W.A. Lifetime Rate Cap:	6.004%
Range:	5.250% - 15.875%	Property Type:
W.A. Gross Margin:	5.61%	Single Family:	63.44%
Range:	2.250% - 8.250%	PUD:	28.89%
W.A. Remaining Term (months):	345	Condo:	6.03%
Range (months):	113-360	2-4 Family:	1.64%
W.A. Seasoning (months):	2	Occupancy Status:
Latest Maturity Date:	February 1, 2037	Primary:	98.95%
State Concentration (Top 5):		Investment:	0.91%
California:	44.24%	Second Home:	0.15%
Florida:	10.63%	Documentation Status:
Arizona:	4.88%	Full:	62.29%
Ohio:	4.58%	Stated:	26.27%
Texas:	3.53%	Limited:	6.59%
W.A. Original Combined LTV:	82.03%	None:	4.86%
Range:	17.53% - 100.00%	Non-Zero W.A. Prepayment Penalty - Term (months):	28
First Liens:	92.20%	Loans with Prepay Penalties:	79.74%
Second Liens:	7.80%	Interest Only Loans:	44.34%
Non-Balloon Loans:	74.84%	Non-Zero W.A. Interest Only Term (months):	60
Non-Zero W.A. FICO Score:	657

* Subject to a permitted variance of +/- 10%


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Originator

Originator	Number of Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		Mortgage Rates (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
American Home Mortgage		568		79,158,997		17.03		8.681		632		84.01
DHI Mortgage		211		30,444,711		6.55		8.560		657		86.35
2CI Direct, LLC		67		29,971,293		6.45		8.133		690		82.43
Harbourton Mortgage Investment		112		28,518,265		6.14		8.099		651		85.56
Other		1,220		296,676,997		63.83		7.689		660		80.68
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Collateral Type

Collateral Type	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Fixed - 15 Year		8		1,037,370		0.22		6.649		650		55.66
Fixed - 20 Year		5		256,833		0.06		11.937		636		99.99
Fixed - 30 Year		214		62,634,219		13.48		6.566		700		69.90
Balloon - 10/30		17		904,418		0.19		11.875		633		99.87
Balloon - 15/30		420		25,208,877		5.42		11.415		649		99.30
Balloon - 20/30		101		8,190,368		1.76		11.141		673		99.83
Balloon - 30/40		57		13,186,756		2.84		7.662		665		81.64
Balloon - 30/50		1		749,827		0.16		6.375		779		89.29
ARM - 6 Month		2		692,272		0.15		8.048		657		91.91
ARM - 6 Month IO		4		802,899		0.17		8.891		602		81.33
ARM - 1 Year/6 Month		8		1,259,138		0.27		7.827		649		89.39
ARM - 1 Year/6 Month IO		3		1,604,000		0.35		7.093		645		80.00
ARM - 1 Year/6 Month 30/50 Balloon		1		849,765		0.18		5.875		667		74.89
ARM - 2 Year/6 Month		325		57,701,738		12.42		8.391		641		83.82
ARM - 2 Year/6 Month IO		489		151,997,143		32.70		7.854		657		81.40
ARM - 2 Year/6 Month 30/40 Balloon		111		29,514,304		6.35		8.060		653		83.20
ARM - 2 Year/6 Month 30/50 Balloon		65		24,153,612		5.20		8.056		633		84.18
ARM - 3 Year/6 Month		96		16,461,099		3.54		8.226		626		82.25
ARM - 3 Year/6 Month IO		170		44,025,079		9.47		7.327		643		84.07
ARM - 3 Year/6 Month 30/40 Balloon		16		4,597,005		0.99		8.212		659		88.46
ARM - 3 Year/6 Month 30/50 Balloon		21		7,704,097		1.66		7.266		653		80.95
ARM - 5 Year/6 Month		7		1,728,513		0.37		7.215		650		68.83
ARM - 5 Year/6 Month IO		31		7,630,299		1.64		7.661		663		80.11
ARM - 5 Year/6 Month 30/50 Balloon		6		1,880,635		0.40		7.897		633		85.97
Total:		2,178		464,770,264		100.00		7.969		657		82.03

IO Terms

IO Terms (mos.)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0		1,481		258,710,844		55.66		8.157		659		82.13
60		695		205,613,620		44.24		7.731		654		81.92
120		2		445,800		0.10		8.346		614		80.00
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Principal Balance at Origination

Principal Balance at Origination ($)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0.01 - 50,000.00		275		9,602,675		2.07		11.425		634		96.94
50,000.01 - 100,000.00		473		35,155,802		7.56		10.089		638		90.58
100,000.01 - 150,000.00		305		37,539,288		8.08		8.730		635		84.68
150,000.01 - 200,000.00		268		47,106,057		10.14		8.043		637		82.39
200,000.01 - 250,000.00		212		47,250,116		10.17		7.872		643		83.22
250,000.01 - 300,000.00		155		42,552,265		9.16		7.956		651		83.00
300,000.01 - 350,000.00		92		29,901,657		6.43		7.899		653		84.87
350,000.01 - 400,000.00		67		25,132,558		5.41		7.896		654		81.91
400,000.01 - 450,000.00		79		33,930,447		7.30		7.434		661		81.05
450,000.01 - 500,000.00		70		33,219,101		7.15		7.382		665		79.74
500,000.01 - 550,000.00		53		27,678,440		5.96		7.479		662		80.01
550,000.01 - 600,000.00		38		21,662,029		4.66		6.882		681		81.00
600,000.01 - 650,000.00		22		13,736,146		2.96		7.178		661		77.38
650,000.01 - 700,000.00		13		8,773,141		1.89		6.849		696		74.36
700,000.01 - 750,000.00		10		7,307,769		1.57		7.149		672		74.38
750,000.01 - 800,000.00		12		9,402,618		2.02		7.025		685		66.92
800,000.01 - 850,000.00		5		4,178,594		0.90		7.035		700		76.39
850,000.01 - 900,000.00		3		2,612,549		0.56		7.363		673		80.00
900,000.01 - 950,000.00		5		4,667,834		1.00		7.651		712		78.99
950,000.01 - 1,000,000.00		7		6,900,369		1.48		7.352		699		77.62
1,000,000.01 >=		14		16,460,810		3.54		7.406		721		73.00
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Remaining Principal Balance

Remaining Principal Balance ($)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0.01 - 50,000.00		276		9,628,783		2.07		11.430		634		96.95
50,000.01 - 100,000.00		472		35,129,694		7.56		10.087		638		90.57
100,000.01 - 150,000.00		306		37,688,957		8.11		8.730		635		84.67
150,000.01 - 200,000.00		268		47,156,319		10.15		8.032		637		82.39
200,000.01 - 250,000.00		211		47,050,186		10.12		7.881		643		83.24
250,000.01 - 300,000.00		155		42,552,265		9.16		7.956		651		83.00
300,000.01 - 350,000.00		92		29,901,657		6.43		7.899		653		84.87
350,000.01 - 400,000.00		67		25,132,558		5.41		7.896		654		81.91
400,000.01 - 450,000.00		79		33,930,447		7.30		7.434		661		81.05
450,000.01 - 500,000.00		70		33,219,101		7.15		7.382		665		79.74
500,000.01 - 550,000.00		54		28,228,130		6.07		7.492		662		80.30
550,000.01 - 600,000.00		37		21,112,339		4.54		6.850		682		80.63
600,000.01 - 650,000.00		22		13,736,146		2.96		7.178		661		77.38
650,000.01 - 700,000.00		13		8,773,141		1.89		6.849		696		74.36
700,000.01 - 750,000.00		10		7,307,769		1.57		7.149		672		74.38
750,000.01 - 800,000.00		12		9,402,618		2.02		7.025		685		66.92
800,000.01 - 850,000.00		5		4,178,594		0.90		7.035		700		76.39
850,000.01 - 900,000.00		3		2,612,549		0.56		7.363		673		80.00
900,000.01 - 950,000.00		5		4,667,834		1.00		7.651		712		78.99
950,000.01 - 1,000,000.00		7		6,900,369		1.48		7.352		699		77.62
1,000,000.01 >=		14		16,460,810		3.54		7.406		721		73.00
Total:		2,178		464,770,264		100.00		7.969		657		82.03

Remaining Term

Months Remaining	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
61 - 120		17		904,418		0.19		11.875		633		99.87
121 - 180		428		26,246,246		5.65		11.227		649		97.58
181 - 240		106		8,447,200		1.82		11.166		672		99.84
301 - 360		1,627		429,172,399		92.34		7.698		657		80.69
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Mortgage Rate

Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
5.000 - 5.499		9		3,672,614		0.79		5.353		753		52.17
5.500 - 5.999		77		40,462,335		8.71		5.717		725		64.06
6.000 - 6.499		59		19,832,079		4.27		6.233		691		83.14
6.500 - 6.999		184		55,791,214		12.00		6.735		663		79.57
7.000 - 7.499		212		55,658,085		11.98		7.200		658		81.18
7.500 - 7.999		334		92,505,011		19.90		7.709		653		80.63
8.000 - 8.499		235		56,189,260		12.09		8.171		646		82.01
8.500 - 8.999		209		51,452,593		11.07		8.688		641		83.37
9.000 - 9.499		116		22,338,170		4.81		9.180		623		88.64
9.500 - 9.999		111		17,356,263		3.73		9.740		619		90.17
10.000 - 10.499		91		11,465,044		2.47		10.225		633		94.15
10.500 - 10.999		111		10,342,635		2.23		10.734		656		96.84
11.000 - 11.499		141		9,617,947		2.07		11.209		649		99.23
11.500 - 11.999		130		8,626,585		1.86		11.761		635		99.45
12.000 - 12.499		73		4,967,392		1.07		12.247		616		99.85
12.500 - 12.999		30		2,013,117		0.43		12.697		611		98.27
13.000 - 13.499		8		413,492		0.09		13.241		599		100.00
13.500 - 13.999		8		489,224		0.11		13.786		597		100.00
14.000 - 14.499		15		649,102		0.14		14.350		593		100.00
14.500 - 14.999		20		746,499		0.16		14.728		590		100.00
15.000 - 15.499		4		154,822		0.03		15.019		596		100.00
15.500 - 15.999		1		26,780		0.01		15.875		595		100.00
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Original Combined Loan-to-Value Ratio

Original Combined Loan-to-Value Ratio (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Less than or Equal to 50.00		42		12,338,469		2.65		6.381		693		41.05
50.01 - 55.00		11		5,183,779		1.12		5.888		705		52.35
55.01 - 60.00		25		6,200,182		1.33		6.561		672		58.20
60.01 - 65.00		35		12,778,578		2.75		6.262		704		63.47
65.01 - 70.00		38		10,133,582		2.18		7.258		658		68.41
70.01 - 75.00		45		16,667,075		3.59		6.856		664		73.80
75.01 - 80.00		973		259,363,193		55.80		7.629		656		79.94
80.01 - 85.00		72		18,492,819		3.98		7.968		621		84.13
85.01 - 90.00		114		27,672,228		5.95		8.101		648		89.33
90.01 - 95.00		86		18,805,119		4.05		8.260		652		94.72
95.01 - 100.00		737		77,135,242		16.60		10.118		650		99.97
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

FICO Score at Origination

FICO Score At Origination	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1 - 499		1		79,896		0.02		10.125		492		100.00
500 - 524		1		99,865		0.02		8.000		505		74.07
525 - 549		27		4,406,451		0.95		9.065		545		71.42
550 - 574		62		10,851,629		2.33		9.026		563		77.94
575 - 599		230		34,590,389		7.44		9.452		588		84.91
600 - 624		399		65,412,678		14.07		8.574		612		84.10
625 - 649		528		105,952,706		22.80		8.074		639		83.88
650 - 674		481		100,630,983		21.65		7.863		660		83.62
675 - 699		240		63,526,680		13.67		7.508		686		82.11
700 - 724		107		35,788,028		7.70		7.189		711		78.73
725 - 749		41		15,343,053		3.30		7.055		737		72.81
750 - 774		31		15,628,450		3.36		7.103		763		76.52
775 - 799		26		11,289,355		2.43		6.181		785		71.43
800 - 824		4		1,170,103		0.25		5.467		807		48.78
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Geographic Distribution*

Location	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
California		575		205,635,706		44.24		7.460		677		79.21
Florida		270		49,396,496		10.63		7.839		648		82.28
Arizona		138		22,666,378		4.88		8.239		640		83.22
Ohio		168		21,296,948		4.58		8.119		631		86.11
Texas		141		16,424,066		3.53		8.660		649		86.63
Maryland		50		13,054,308		2.81		8.194		633		81.98
Nevada		69		12,386,347		2.67		8.540		642		84.83
Illinois		73		12,185,080		2.62		8.678		645		83.14
Virginia		58		10,549,182		2.27		8.485		639		84.92
Michigan		72		10,220,070		2.20		9.023		648		87.23
Washington		52		10,066,402		2.17		8.148		641		83.30
Georgia		39		6,696,533		1.44		8.439		649		87.55
Pennsylvania		39		5,845,924		1.26		8.793		633		88.71
Oregon		29		5,448,295		1.17		8.037		641		82.03
Colorado		34		5,350,194		1.15		8.157		648		83.65
New York		21		5,149,381		1.11		8.316		646		78.52
New Jersey		18		4,830,939		1.04		8.883		636		84.28
Tennessee		40		4,451,437		0.96		8.447		628		87.43
Connecticut		12		3,592,814		0.77		8.831		603		83.53
Missouri		29		3,485,226		0.75		9.376		632		90.58
North Carolina		26		3,475,135		0.75		9.089		628		85.62
Minnesota		20		3,358,225		0.72		8.322		651		83.44
Indiana		21		2,908,848		0.63		8.903		620		83.44
Kentucky		13		2,831,052		0.61		7.893		654		81.54
Arkansas		21		2,677,705		0.58		8.561		643		88.53
Louisiana		21		2,459,056		0.53		8.775		637		86.86
New Mexico		17		2,426,724		0.52		9.123		618		80.52
Mississippi		15		2,251,465		0.48		8.608		630		88.04
Wisconsin		16		2,010,531		0.43		8.855		633		91.61
South Carolina		11		1,923,265		0.41		9.708		634		84.26
Hawaii		4		1,216,625		0.26		7.663		657		68.31
Alabama		7		1,122,618		0.24		8.855		616		87.17
Utah		5		959,806		0.21		7.718		640		85.24
Idaho		7		925,809		0.20		8.633		620		79.94

*Geographic Distribution continued on the next page


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Geographic Distribution (Continued)

Location	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Montana		3		716,552		0.15		10.028		564		81.89
Oklahoma		8		709,667		0.15		8.068		645		84.51
District of Columbia		2		674,796		0.15		8.435		680		89.34
Massachusetts		4		648,742		0.14		9.622		625		80.66
West Virginia		2		509,925		0.11		8.677		638		80.00
Iowa		7		460,305		0.10		9.400		629		91.35
Delaware		5		391,343		0.08		10.208		616		92.33
South Dakota		6		341,250		0.07		9.381		636		93.40
New Hampshire		2		284,070		0.06		9.682		601		89.19
Kansas		5		265,779		0.06		10.440		647		95.81
Wyoming		1		170,981		0.04		8.250		581		80.00
Maine		1		167,866		0.04		7.125		693		100.00
Alaska		1		150,400		0.03		9.625		542		80.00
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Occupancy Status

Occupancy Status	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Primary		2,150		459,866,969		98.95		7.966		657		82.04
Investment		23		4,214,848		0.91		8.395		647		80.04
Second Home		5		688,447		0.15		7.478		658		85.55
Total:		2,178		464,770,264		100.00		7.969		657		82.03

Documentation Type

Program	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Full		1,354		289,496,095		62.29		7.822		649		81.75
Stated Documentation		584		122,089,834		26.27		8.144		669		82.88
Limited		96		30,614,435		6.59		8.293		673		81.85
No Documentation		144		22,569,900		4.86		8.469		664		81.36
Total:		2,178		464,770,264		100.00		7.969		657		82.03

Loan Purpose

Purpose	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Purchase		1,693		319,944,176		68.84		8.264		656		84.69
Refinance - Cashout		418		121,432,980		26.13		7.411		654		76.94
Refinance - Rate Term		67		23,393,108		5.03		6.822		685		72.12
Total:		2,178		464,770,264		100.00		7.969		657		82.03

Property Type

Property Type	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
Single Family Residence		1,312		294,860,924		63.44		7.925		661		81.22
PUD		672		134,270,052		28.89		7.996		647		83.28
Condo		156		28,034,882		6.03		8.230		656		84.42
2-4 Family		38		7,604,406		1.64		8.218		662		82.79
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Rate Adjustment*

Month & Year of Next Rate Adjustment	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2007-05		2		391,399		0.11		8.694		598		79.71
2007-06		2		352,582		0.10		9.016		628		91.91
2007-07		2		751,190		0.21		8.159		643		86.95
2007-11		4		353,103		0.10		9.255		622		85.61
2007-12		5		1,709,354		0.48		7.200		644		80.25
2008-01		3		1,337,946		0.38		6.981		649		83.96
2008-02		1		648,000		0.18		6.875		675		90.00
2008-03		1		195,238		0.06		9.600		634		94.96
2008-06		1		106,694		0.03		8.400		610		90.00
2008-07		3		812,366		0.23		6.662		660		82.45
2008-08		4		1,663,784		0.47		8.133		648		71.05
2008-09		18		5,250,964		1.49		7.800		664		80.00
2008-10		45		12,998,514		3.69		8.283		641		81.81
2008-11		286		76,175,981		21.60		7.994		649		81.18
2008-12		305		80,539,650		22.84		8.033		652		83.42
2009-01		254		66,236,541		18.79		8.012		650		83.36
2009-02		72		19,051,565		5.40		7.891		652		81.04
2009-09		1		278,709		0.08		8.500		612		90.00
2009-10		15		3,245,396		0.92		7.993		633		81.49
2009-11		83		18,908,068		5.36		7.847		637		83.87
2009-12		104		25,350,434		7.19		7.455		642		82.96
2010-01		83		21,418,313		6.07		7.422		648		84.89
2010-02		17		3,586,360		1.02		7.548		619		80.48
2011-09		1		152,447		0.04		9.875		580		80.00
2011-11		10		2,076,600		0.59		8.398		633		77.40
2011-12		13		2,721,969		0.77		7.642		648		79.53
2012-01		18		5,172,831		1.47		7.090		655		79.90
2012-02		2		1,115,600		0.32		8.388		734		80.00
Total:		1,355		352,601,597		100.00		7.904		649		82.56

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Gross Margin*

Gross Margin (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2.000 - 2.499		3		718,864		0.20		6.912		659		80.00
2.500 - 2.999		3		510,740		0.14		7.519		634		80.00
3.000 - 3.499		2		1,310,176		0.37		7.847		636		80.00
4.000 - 4.499		7		1,523,916		0.43		7.767		635		81.21
4.500 - 4.999		14		3,367,894		0.96		7.299		659		79.11
5.000 - 5.499		909		242,052,809		68.65		7.646		652		78.94
5.500 - 5.999		141		36,373,394		10.32		8.066		637		86.81
6.000 - 6.499		27		8,230,573		2.33		8.229		642		84.85
6.500 - 6.999		221		53,113,215		15.06		8.823		645		95.48
7.000 - 7.499		17		2,743,617		0.78		9.184		642		87.80
7.500 - 7.999		10		2,378,915		0.67		9.575		622		93.03
8.000 - 8.499		1		277,484		0.08		10.250		546		70.00
Total:		1,355		352,601,597		100.00		7.904		649		82.56

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Maximum Mortgage Rate*

Maximum Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
11.000 - 11.499		2		331,080		0.09		5.291		639		80.00
11.500 - 11.999		15		5,029,012		1.43		5.785		674		77.99
12.000 - 12.499		42		14,390,780		4.08		6.240		681		83.50
12.500 - 12.999		150		48,314,250		13.70		6.731		664		79.51
13.000 - 13.499		195		51,675,891		14.66		7.198		658		81.13
13.500 - 13.999		297		83,907,829		23.80		7.707		654		80.76
14.000 - 14.499		206		52,376,906		14.85		8.167		646		81.99
14.500 - 14.999		176		46,835,340		13.28		8.690		642		83.03
15.000 - 15.499		97		20,417,856		5.79		9.184		622		88.82
15.500 - 15.999		81		14,939,195		4.24		9.703		609		88.82
16.000 - 16.499		37		6,552,280		1.86		10.185		600		91.52
16.500 - 16.999		25		3,221,854		0.91		10.617		594		92.47
17.000 - 17.499		9		1,641,176		0.47		11.114		595		99.14
17.500 - 17.999		10		1,333,260		0.38		11.473		648		99.43
18.000 - 18.499		7		1,047,994		0.30		12.162		589		100.00
18.500 - 18.999		2		150,848		0.04		12.622		586		94.90
19.000 - 19.499		1		54,962		0.02		13.049		595		100.00
19.500 - 19.999		2		265,900		0.08		13.786		589		100.00
20.500 - 20.999		1		115,182		0.03		14.625		586		100.00
Total:		1,355		352,601,597		100.00		7.904		649		82.56

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Minimum Mortgage Rate*

Minimum Mortgage Rate (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
2.500 - 2.999		2		302,740		0.09		7.875		638		80.00
4.500 - 4.999		1		49,896		0.01		7.875		689		20.83
5.000 - 5.499		5		1,364,265		0.39		6.974		627		69.52
5.500 - 5.999		16		5,307,721		1.51		5.928		671		78.62
6.000 - 6.499		42		14,390,780		4.08		6.240		681		83.50
6.500 - 6.999		149		47,927,250		13.59		6.731		664		79.76
7.000 - 7.499		195		51,709,706		14.67		7.200		658		81.17
7.500 - 7.999		294		83,882,976		23.79		7.708		654		80.79
8.000 - 8.499		205		51,663,366		14.65		8.168		646		82.02
8.500 - 8.999		174		46,262,388		13.12		8.694		643		83.01
9.000 - 9.499		98		20,949,015		5.94		9.179		622		88.66
9.500 - 9.999		81		14,603,275		4.14		9.727		608		89.13
10.000 - 10.499		37		6,552,280		1.86		10.185		600		91.52
10.500 - 10.999		25		3,400,944		0.96		10.690		613		93.15
11.000 - 11.499		9		1,641,176		0.47		11.114		595		99.14
11.500 - 11.999		9		958,932		0.27		11.756		595		99.21
12.000 - 12.499		7		1,047,994		0.30		12.162		589		100.00
12.500 - 12.999		2		150,848		0.04		12.622		586		94.90
13.000 - 13.499		1		54,962		0.02		13.049		595		100.00
13.500 - 13.999		2		265,900		0.08		13.786		589		100.00
14.500 - 14.999		1		115,182		0.03		14.625		586		100.00
Total:		1,355		352,601,597		100.00		7.904		649		82.56

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Initial Periodic Rate Cap*

Initial Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1.000		5		1,352,589		0.38		8.580		623		86.88
1.500		1		195,238		0.06		9.600		634		94.96
2.000		13		4,012,311		1.14		7.142		645		80.12
3.000		1,329		345,883,442		98.09		7.907		649		82.54
3.050		1		99,817		0.03		8.500		644		100.00
4.000		1		154,911		0.04		12.000		597		100.00
5.000		1		243,830		0.07		8.380		628		95.00
6.000		4		659,460		0.19		7.695		649		80.00
Total:		1,355		352,601,597		100.00		7.904		649		82.56

*ARM Loans Only

Subsequent Periodic Rate Cap*

Subsequent Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
1.000		1,351		351,968,499		99.82		7.903		649		82.55
1.500		1		195,238		0.06		9.600		634		94.96
2.000		3		437,860		0.12		7.566		658		80.00
Total:		1,355		352,601,597		100.00		7.904		649		82.56

*ARM Loans Only

Lifetime Periodic Cap*

Lifetime Periodic Cap (%)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
6.000 - 6.499		1,350		350,638,847		99.44		7.898		649		82.54
6.500 - 6.999		3		1,393,184		0.40		8.430		643		80.86
7.000 - 7.499		2		569,566		0.16		10.356		733		98.27
Total:		1,355		352,601,597		100.00		7.904		649		82.56

*ARM Loans Only


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

DESCRIPTION OF THE GROUP II COLLATERAL

Original Prepayment Charge Term

Prepayment Penalty Term (mos.)	Number of Initial Mortgage Loans		Aggregate Remaining Principal Balance ($)		% of Aggregate Remaining Principal Balance		W.A. Coupon (%)		W.A. Non-Zero FICO		W.A. Original CLTV (%)
0		570		94,165,371		20.26		8.774		644		84.65
6		6		2,367,468		0.51		7.775		680		78.03
12		87		25,144,808		5.41		8.334		655		82.81
13		2		693,019		0.15		7.753		679		78.65
24		960		207,049,902		44.55		8.169		655		84.14
36		432		113,301,191		24.38		6.979		676		75.43
48		120		21,749,886		4.68		7.363		628		84.69
60		1		298,620		0.06		6.500		652		80.00
Total:		2,178		464,770,264		100.00		7.969		657		82.03


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1

FOR ADDITIONAL INFORMATION PLEASE CALL:

Deutsche Bank Securities

Whole Loan Trading
Michael Commaroto	212-250-3114
Paul Mangione	212-250-5786
Adam Simms	212-250-8119

ABS Banking
Sue Valenti	212-250-3455
Rika Yano	212-250-6997
Karan Mehta	212-250-0869
Roxana McKinney	212-250-0848

ABS Structuring
Bill Yeung	212-250-6893
Christopher Sudol	212-250-0507

ABS Collateral
Reta Chandra	212-250-2729
Justice Asante	212-250-8595

*To 10% Optional Termination*
Class	Approximate Size ($)	Type	WAL (yrs)	Principal Payment Window (months)	Pmt Delay (days)	Interest Accrual Basis	Legal Final Maturity	Expected Ratings S / M
Offered Certificates:
A-1	284,631,000	Float	2.29	1 - 84	0	ACT/360	March 2037	AAA / Aaa
A-2A	181,404,000	Float	1.00	1 - 22	0	ACT/360	March 2037	AAA / Aaa
A-2B	67,264,000	Float	2.00	22 - 28	0	ACT/360	March 2037	AAA / Aaa
A-2C	57,273,000	Float	3.00	28 - 56	0	ACT/360	March 2037	AAA / Aaa
A-2D	57,045,000	Float	6.22	56 - 84	0	ACT/360	March 2037	AAA / Aaa
M-1	31,510,000	Float	4.91	45 - 84	0	ACT/360	March 2037	AA+/ Aa1
M-2	28,608,000	Float	4.81	42 - 84	0	ACT/360	March 2037	AA+ /Aa2
M-3	16,170,000	Float	4.75	41 - 84	0	ACT/360	March 2037	AA+/Aa3
M-4	14,926,000	Float	4.72	40 - 84	0	ACT/360	March 2037	AA/A1
M-5	14,097,000	Float	4.70	40 - 84	0	ACT/360	March 2037	AA-/A2
M-6	13,682,000	Float	4.67	39 - 84	0	ACT/360	March 2037	A+/A3
M-7	12,024,000	Float	4.66	38 - 84	0	ACT/360	March 2037	A/Baa1
M-8	11,609,000	Float	4.65	38 - 84	0	ACT/360	March 2037	BBB+/Baa2
M-9	8,292,000	Float	4.65	38 - 84	0	ACT/360	March 2037	BBB/Baa3

Total	$798,535,000

Pricing Speed
Fixed-Rate Mortgage Loans		100% PPC (4% CPR growing to 23% CPR over 12 months )
Adjustable-Rate Mortgage Loans		100% PPC (5% CPR in month 1, an additional 2% CPR for each month thereafter, building to 27% CPR in month 12 and remaining constant at 27% CPR until month 23, increasing to and remaining constant at 60% CPR from month 24 until month 27 and decreasing and remaining constant at 30% CPR from month 28 and thereafter; provided, however, the prepayment rate will not exceed 85% CPR per annum in any period for any percentage of PPC)


ACE Securities Corp. Home Equity Loan Trust Series 2007-ASAP1	FREE WRITING PROSPECTUS