Catozon 7.1 Channel USB External Sound Card Audio Adapter,2 Pack 7.1 Channel External USB Audio Sound Card Adapter USB 2.0 Full-Speed (12Mbps) Specification.Plug and play No drivers Needed Connectors: USB Type A, Stereo output jack, mono microphone input jack USB bus-powered, no external power required LED indicators: Microphone-Mute Status, Activity