Kingwin USB External Stereo 3D Sound Adapter, USB Bus-Powered, [Plug & Play], C-Media Chipset and No External Power Required. Windows & Mac Compatible, and No Driver Needed USB Stereo 3D Sound Adapter Compliant with USB 2.0 Full Speed Reverse Compliant with USB Audio Device Class Specs 1.0 USB bus-powered, no external power required Driverless Installation for Windows 98 SE/ ME/ 2000/ XP/ Server2003/ Vista/ 7/ 8/Any Distribution of Linux and Mac OSx 10+ C-Media Chipset