Description: This Sabrent AU-MMSA 2.1 Audio Sound Card Adapter is a highly flexible audio interface, which can be used with either laptop or desktop system. No driver required, plug-and-play for instant audio playing and compliant with all mainstream operation systems. Simply Plug the Sound Adapter into your USB port, and then plug your headphones into the Adapter. 3D stereo USB audio adapter. USB 2.0 Hi-Speed specification. Backward compatible with USB 1.1 Connectors: USB type A, stereo output jack, microphone input jack. No external power required. Plug & Play, no drivers needed.