Blue 6 Channel External Sound Card 5.1 Surround Sound USB 2.0 External Optical Audio Sound Card Adapter for PC Laptop

5.1 Rush Digital Sound Decoder DTS / AC3 Dolby SPDIF Input to channel Digital Audio Converter with Optical SPDIF Coaxial Dolby AC3 DTS stereo(R/L) to 5.1CH Analog Audio (6RCA Output)