Exhibit 25.1

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM T-1

STATEMENT OF ELIGIBILITY UNDER

THE TRUST INDENTURE ACT OF 1939 OF A

CORPORATION DESIGNATED TO ACT AS TRUSTEE

☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2)

U.S. BANK NATIONAL ASSOCIATION

(Exact name of Trustee as specified in its charter)

31-0841368

I.R.S. Employer Identification No.

800 Nicollet Mall Minneapolis, Minnesota	55402
(Address of principal executive offices)	(Zip Code)

Paula Oswald

U.S. Bank National Association

633 West Fifth Street, 24^th Floor, Los Angeles, CA 90071

(213) 615-6043

(Name, address and telephone number of agent for service)

WESTERN DIGITAL CORPORATION

(Exact name of obligor as specified in its charter)

Delaware	33-0956711
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

5601 Great Oaks Parkway San Jose, California	95119
(Address of Principal Executive Offices)	(Zip Code)

Senior Notes due 2026

Guarantees for the Senior Notes due 2026

(Title of the Indenture Securities)

GUARANTORS

Exact Name of Additional Registrant As Specified in its Charter*	State or Other Jurisdiction of Incorporation or Organization		I.R.S. Employer Identification No.		Primary Standard Industrial Classification Code Number		Address, including Zip Code, and Telephone Number, including Area Code, of Principal Executive Offices
HGST, Inc.		Delaware		48-1280899		3572	5601 Great Oaks Parkway
							San Jose, California 95119 (408) 717-6000
WD Media, LLC		Delaware		94-2914864		3695	5601 Great Oaks Parkway
							San Jose, California 95119 (408) 717-6000
Western Digital (Fremont), LLC		Delaware		20-0120906		3572	5601 Great Oaks Parkway
							San Jose, California 95119 (408) 717-6000
Western Digital Technologies, Inc.		Delaware		95-2647125		3572	5601 Great Oaks Parkway
							San Jose, California 95119
							(408) 717-6000

* The name, address, including zip code, and telephone number, including area code of the agent for service for each of the additional registrants are the same as Western Digital Corporation.

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FORM T-1

Item 1. GENERAL INFORMATION. Furnish the following information as to the Trustee.

a) Name and address of each examining or supervising authority to which it is subject.

Comptroller of the Currency

Washington, D.C.

b) Whether it is authorized to exercise corporate trust powers.

Yes

Item 2. AFFILIATIONS WITH OBLIGOR. If the obligor is an affiliate of the Trustee, describe each such affiliation.

None

Items 3-15 Items 3-15 are not applicable because to the best of the Trustee’s knowledge, the obligor is not in default under any Indenture for which the Trustee acts as Trustee.

Item 16. LIST OF EXHIBITS: List below all exhibits filed as a part of this statement of eligibility and qualification.

1. A copy of the Articles of Association of the Trustee.*

2. A copy of the certificate of authority of the Trustee to commence business, attached as Exhibit 2.

3. A copy of the certificate of authority of the Trustee to exercise corporate trust powers, attached as Exhibit 3.

4. A copy of the existing bylaws of the Trustee.**

5. A copy of each Indenture referred to in Item 4. Not applicable.

6. The consent of the Trustee required by Section 321(b) of the Trust Indenture Act of 1939, attached as Exhibit 6.

7. Report of Condition of the Trustee as of September 30, 2017 published pursuant to law or the requirements of its supervising or examining authority, attached as Exhibit 7.

* Incorporated by reference to Exhibit 25.1 to Amendment No. 2 to registration statement on S-4, Registration Number 333-128217 filed on November 15, 2005.

** Incorporated by reference to Exhibit 25.1 to registration statement on form S-3ASR, Registration Number 333-199863 filed on November 5, 2014.

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SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939, as amended, the Trustee, U.S. BANK NATIONAL ASSOCIATION, a national banking association organized and existing under the laws of the United States of America, has duly caused this statement of eligibility and qualification to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of Los Angeles, California on the 29th day of January, 2018.

By:	/s/ Paula Oswald
	Paula Oswald
	Vice President

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Exhibit 2

	Office of the Comptroller of the Currency
		Washington, DC 20219

CERTIFICATE OF CORPORATE EXISTENCE

I, Keith A. Noreika, Acting Comptroller of the Currency, do hereby certify that:

1. The Comptroller of the Currency, pursuant to Revised Statutes 324, et seq, as amended, and 12 USC 1, et seq, as amended, has possession, custody, and control of all records pertaining to the chartering, regulation, and supervision of all national banking associations.

“U.S. Bank National Association,” Cincinnati, Ohio (Charter No. 24), is a national banking association formed under the laws of the United States and is authorized thereunder to transact the business of banking on the date of this certificate.

	IN TESTIMONY WHEREOF, today, June 7, 2017, I have hereunto subscribed my name and caused my seal of office to be affixed to these presents at the U.S. Department of the Treasury, in the City of Washington, District of Columbia.
	Acting Comptroller of the Currency

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Exhibit 3

	Office of the Comptroller of the Currency
		Washington, DC 20219

CERTIFICATE OF FIDUCIARY POWERS

I, Keith A. Noreika, Acting Comptroller of the Currency, do hereby certify that:

1. The Comptroller of the Currency, pursuant to Revised Statutes 324, et seq, as amended, and 12 USC 1, et seq, as amended, has possession, custody, and control of all records pertaining to the chartering, regulation, and supervision of all national banking associations.

2. “U.S. Bank National Association,” Cincinnati, Ohio (Charter No. 24), was granted, under the hand and seal of the Comptoroller, the right to act in all fiduciary capacities authorized under the provisions of the Act of Congress approved September 28, 1962, Stat. 668, 12 USC 92a, and that the authority so granted remains in full force and effect on the date of this certificate.

	IN TESTIMONY WHEREOF, today, June 7, 2017, I have hereunto subscribed my name and caused my seal of office to be affixed to these presents at the U.S. Department of the Treasury, in the City of Washington, District of Columbia.
	Acting Comptroller of the Currency

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Exhibit 6

CONSENT

In accordance with Section 321(b) of the Trust Indenture Act of 1939, the undersigned, U.S. BANK NATIONAL ASSOCIATION hereby consents that reports of examination of the undersigned by Federal, State, Territorial or District authorities may be furnished by such authorities to the Securities and Exchange Commission upon its request therefor.

Dated: January 29, 2018

By:	/s/ Paula Oswald
	Paula Oswald
	Vice President

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Exhibit 7

U.S. Bank National Association

Statement of Financial Condition

As of 9/30/2017

($000’s)

	9/30/2017
Assets
Cash and Balances Due From	$	20,502,653
Depository Institutions
Securities		110,797,206
Federal Funds		24,647
Loans & Lease Financing Receivables		277,953,611
Fixed Assets		4,538,527
Intangible Assets		12,820,876
Other Assets		25,614,306
Total Assets	$	452,251,826
Liabilities
Deposits	$	353,914,855
Fed Funds		992,263
Treasury Demand Notes		0
Trading Liabilities		989,885
Other Borrowed Money		31,965,947
Acceptances		0
Subordinated Notes and Debentures		3,300,000
Other Liabilities		14,438,977
Total Liabilities	$	405,601,927
Equity
Common and Preferred Stock		18,200
Surplus		14,266,915
Undivided Profits		31,565,657
Minority Interest in Subsidiaries		799,127
Total Equity Capital	$	46,649,899
Total Liabilities and Equity Capital	$	452,251,826

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