Sabrent USB External Stereo Sound Adapter for Windows and Mac. Plug and play No drivers Needed. (AU-MMSA) Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack. Driverless for Windows 98SE/ME/2000/XP/Server 2003/Vista/7/8/Linux/Mac OSX. USB bus-powered, no external power required. Reverse Compliant with USB Audio Device Class Specification 1.0