USB 2.0 Stereo Sound Adapter, External Power Not Required(Black)

1) USB 2.0 audio device compliant 2) USB bus power. External power not required 3) Connectors: USB Type-A, stereo output jack, mono microphone input jack 4) LED indicator: USB activity 5) Driver not required for Windows 7 , vista, XP, 2000, 98SE, ME, Server 2003, Server 2008, Linux, and MAC OS / X 10.5 or above 6) Size: 39 x 25mm