-----BEGIN PRIVACY-ENHANCED MESSAGE-----
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,
 OOkzZg4+cgcAMLZ6RXcR7mnMNkcm+932Kg2D9tllhxtrGWyW/2lSoDCzC05Ccyr0
 /HmvKqOT3q2bv/Kbo7ZoMg==

<SEC-DOCUMENT>0001005477-03-003646.txt : 20030902
<SEC-HEADER>0001005477-03-003646.hdr.sgml : 20030901
<ACCEPTANCE-DATETIME>20030902150746
ACCESSION NUMBER:		0001005477-03-003646
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030828
FILED AS OF DATE:		20030902

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CASTELLE \CA\
		CENTRAL INDEX KEY:			0000908605
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER PERIPHERAL EQUIPMENT, NEC [3577]
		IRS NUMBER:				770164056
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		855 JARVIS DRIVE
		CITY:			MORGAN HILL
		STATE:			CA
		ZIP:			95037
		BUSINESS PHONE:		408-852-8000

	MAIL ADDRESS:	
		STREET 1:		855 JARVIS DRIVE
		CITY:			MORGAN HILL
		STATE:			CA
		ZIP:			95037

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CASTELLE INC
		DATE OF NAME CHANGE:	19930702

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			H&Q VENTURES IV
		CENTRAL INDEX KEY:			0000749645
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22020
		FILM NUMBER:		03876200

	BUSINESS ADDRESS:	
		STREET 1:		ONE BUSH STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		4155917757

	MAIL ADDRESS:	
		STREET 1:		ONE BUSH STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar123.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
    <periodOfReport>2003-08-28</periodOfReport>
    <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000908605</issuerCik>
        <issuerName>CASTELLE \CA\</issuerName>
        <issuerTradingSymbol>CSTL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>

        <reportingOwnerId>
            <rptOwnerCik>0000749645</rptOwnerCik>
            <rptOwnerName>H&amp;Q VENTURES IV</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O JP MORGAN CHASE</rptOwnerStreet1>
            <rptOwnerStreet2>560 MISSION STREET</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94105</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
        <isDirector>0</isDirector>
        <isOfficer>0</isOfficer>
        <isTenPercentOwner>1</isTenPercentOwner>
        <isOther>0</isOther>
    </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>

        <securityTitle>
            <value>Common</value>
        </securityTitle>

        <transactionDate>
            <value>2003-08-28</value>
        </transactionDate>
    <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>S</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
    </transactionCoding>
        <transactionAmounts>

            <transactionShares>
                <value>574</value>
            </transactionShares>

            <transactionPricePerShare>
                <value>3.574</value>
            </transactionPricePerShare>

            <transactionAcquiredDisposedCode>
                <value>D</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <postTransactionAmounts>

            <sharesOwnedFollowingTransaction>
                <value>57168</value>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>

            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
        </nonDerivativeTransaction>

    </nonDerivativeTable>
    <ownerSignature>
        <signatureName>Jackie Berterretche</signatureName>
        <signatureDate>2003-08-28</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----