Visit Amazon site : http://www.amazon.com/gp/product/B002LITGHM?tag=gallianostore-20<br /><br />SIIG USB SoundWave 7.1 Digital Audio Adapter IC-710112-S1<br /><br />Provides external volume and mic controls with mute buttons <br />2 microphone inputs and 1 stereo headphone output <br />Supports recording through SPDIF-in Mic Line-in <br />Supports SPDIF out - provides digital surround sound output <br />Provides 21 51 71 connection for surround sound speakers <br />Chipset C-Media CM6206
