Technotech USB External Stereo Sound Card Adapter for Windows and Mac. Plug and play No drivers Needed (Black) USB External Stereo Sound Adapter for Windows and Mac. Plug and play No drivers Needed. Sound 5HV2 USB 7.1 Sound Channel Sound Adapter Equalizer USB 2.0.(Black) 1 Year Warramty. Color : Black3D stereo USB audio adapter.The USB Virtual 7.1 channel sound adapter is a highly flexible audio interface which can be used either with desktop systems.Bundled with Xear 3D sound simulation software,it turns your stereo speaker or earphones into 7.1 channel environment.Connectors: USB type A, stereo output jack, microphone input jack.