SaiTech IT 7.1 Channel USB External Sound Card Audio Adapter PC Laptop 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! Tired of trying to stretch your cables around the back of your computer? Plug this Adapter into a USB port on the front, and use the headphone jack (for output) or the microphone jack (for input) The USB Virtual 7.1 Channel Sound Adapter is a highly flexible audio interface which can be used either with desktop or notebook systems. 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: This does not support Mac OS. This USB to Audio Adapter lets you connect headphones or speakers, and a Microphone to your computer without the need to unplug other devices! Compliant with USB 2.0 and USB audio device specification 1.0, this USB to Audio adapter couldn&#039;t be any simpler to install. The USB Audio Adapter integrates into any computer environment, providing Superb sound quality and convenience that can&#039;t be matched. This is a 7.1 external USB audio sound card for your PC or laptop This USB sound card is the world&#039;s smallest USB sound card USB powered, electromagnetic interference in the pc case is eliminated. Great quality, no noise when you use it.