No drivers required, just plug and play for instant audio playback, also compatible with all major operation systems. Plug the Sound Adapter into your USB port, and then plug your headphones into the Adapter 7.1 Channel sound without the investment in a whole set of speakers!, Comes bundled with Xear 3D Sound simulation software, and turns your stereo speaker or earphones into a 7.1 channel environment! USB2.0 Full-Speed (12Mbps) Specification USB HID Class Specification 1.1 USB Audio Device Class Specification 1.0. Plug this Adapter into a USB port on the front, and use the headphone jack (for output) or the microphone jack (for input) Comes bundled with Xear 3D Sound simulation software, and turns your stereo speaker or earphones into a 7.1 channel environment! USB2.0 Full-Speed (12Mbps) Specification USB HID Class Specification 1.1 USB Audio Device Class Specification 1.0. Please note: No driver Required for Windows 98SE\ME\2000\XP\Server2003\Vista, Linux, MacOS. Package included: 1 x USB Sound Card