New Virtual 7.1 CH Channel USB 2.0 3D Audio Sound Card Adapter Mic Speaker Mixer Virtual USB 7.1 channel sound adapter is a highly flexible audio connector,can be used with any desktop or laptop systems. No need to install the driver,plug and play, USB bus-powered, no external power required. USB Type-A,double Stereo output jack,double Mono microphone-input jack. Supports System: Windows 98SE/ME/2000/XP/Server 2003/Vista,Linux/Mac OS. Include: 1 x External USB 2.0 Sound Card Adapter