External Usb Audio 3d Sound Card 7.1

100% brand new and high quality. Quantity: 1-10k add a virtual 7.1 channel surround sound to your computer with this adapter plug & play and easy to use requires windows 98se, me, xp, vista, 7, server 2003, server 2008; linux. Must use a usb 2.0 port,win7 win8 plug & play, no driver required use with desktop, notebook, windows, or linux features volume up/down, microphone mute, headset mute requires a usb 2.0 port stereo output jack, mono microphone input jack