Philips Aurilium 5.1 Channel Audio Processor - USB (Discontinued by Manufacturer) Plug-and-play external 5.1-channel audio processor for PC use. Connects to computer through USB 2.0 interface; 24-bit, 96 kHz processing Dolby Digital and DTS decoding; compatible with stereo, 2.1, or 5.1 outputs Runs on Windows 2000 or XP 1-year warranty