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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WsJOzbPltnsSN25786KTlfNPL4FvC3ZbmMpuzAnzo6bZto1C7ZYxveuT5x2bTzXH
 ZUlknhmmY6CBFllVU01cIQ==

<SEC-DOCUMENT>9999999995-10-000351.txt : 20100129
<SEC-HEADER>9999999995-10-000351.hdr.sgml : 20100129
<ACCEPTANCE-DATETIME>20100129001511
ACCESSION NUMBER:		9999999995-10-000351
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20100128
DATE AS OF CHANGE:		20100129
EFFECTIVENESS DATE:		20100128

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUN MICROSYSTEMS, INC.
		CENTRAL INDEX KEY:			0000709519
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPUTERS [3571]
		IRS NUMBER:				942805249
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	033-28489
		FILM NUMBER:		10555519

	BUSINESS ADDRESS:	
		STREET 1:		4150 NETWORK CIRCLE
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
		BUSINESS PHONE:		6509601300

	MAIL ADDRESS:	
		STREET 1:		4150 NETWORK CIRCLE
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUN MICROSYSTEMS INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2010-01-28</finalEffectivenessDispDate>
        <accessionNumber>0001193125-10-013767</accessionNumber>
        <submissionType>POS AM</submissionType>
        <filer>
            <cik>0000709519</cik>
            <entityName>SUN MICROSYSTEMS, INC.</entityName>
            <fileNumber>033-28489</fileNumber>
        </filer>
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</TEXT>
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