Nyrius SW100 Digital Audio Optical Toslink 3 Input Selector Switch Compatible with Fiber Optic Cables, HDTV, Blu-ray DVD player, PCM, Dolby Digital, DTS, XBOX360, PS3 3 Toslink optical inputs and 1 Toslink output (bi-directional: can go in reverse direction) Allows you to connect up to three audio/video sources to one input Provides interference and distortion free signal transmission (0 db signal loss) PCM, Dolby Digital and DTS signals can be passed through this unit Does not require a power source