<informationTable xmlns="http://www.sec.gov/edgar/document/thirteenf/informationtable">		<infoTable>
			<nameOfIssuer>Arris Group Inc New</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>04270V106</cusip>
			<value>296927</value>
			<shrsOrPrnAmt>
				<sshPrnamt>9703500</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>3</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>9703500</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Fitbit Inc.</nameOfIssuer>
			<titleOfClass>CL A</titleOfClass>
			<cusip>33812L102</cusip>
			<value>1984</value>
			<shrsOrPrnAmt>
				<sshPrnamt>51886</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>51886</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>LendingClub Corp</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>52603A109</cusip>
			<value>691</value>
			<shrsOrPrnAmt>
				<sshPrnamt>46832</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>2</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>46832</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>LendingClub Corp</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>52603A109</cusip>
			<value>137623</value>
			<shrsOrPrnAmt>
				<sshPrnamt>9330348</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<votingAuthority>
				<Sole>9330348</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>On Deck Cap Inc</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>682163100</cusip>
			<value>40958</value>
			<shrsOrPrnAmt>
				<sshPrnamt>3536952</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>3536952</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Twitter Inc</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>90184L102</cusip>
			<value>1336</value>
			<shrsOrPrnAmt>
				<sshPrnamt>36880</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>36880</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Twitter Inc</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>90184L102</cusip>
			<value>2730</value>
			<shrsOrPrnAmt>
				<sshPrnamt>75385</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<votingAuthority>
				<Sole>75385</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
</informationTable>
