Sigma LP-000022-S1 Internal 4.1channels PCI audio card

SoundWave 5.1 PCI-LP -Upgrade to digital 5.1 surround sound on low-profile desktop systems.
-S/PDIF optical output provides true 5.1-ch sound ( Requires DVD playback software, S/PDIF decoder, Toslink fiber optic cable and 5.1-ch speakers).
-High-definition 5.1 channel surround sound transforms your PC into a home theater system.
-Perfect audio upgrade for DVD playback, listening to MP3 or other music, gaming, and more!
-Reduces unwanted static and noises from D/A processing.
-Easily control your multimedia output by using the integrated volume-up, volume-down, Speaker mute and -Microphone mute buttons.
-CD and Aux input (MPC3).
-Internal Digital output via 2-pin, Molex connector.
-Universal PCI interface enables this board to be installed in PCI-X slots.