SYBA Virtual 7 Surround Sound USB External Adapter for Windows Mac Linux Audio Dongle CMedia Chip SD-CM-UAUD71 Style name:EXTERNAL USB 7.1-Channel Sound Adapter   This Syba SD-CM-UAUD71 USB 2.0 external virtual 7.1 surround sound card 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. Compatible with all Windows Operating system and providing superb sound quality and convenience that can't be matched. Included with the USB Audio Adapter is the Xara 3D software for virtual 7.1 channel sound for use with Win XP ,Win Vista, Win 7, Win 8 and Win 8.1.