aoeyoo&reg; High Quality SPDIF TOSLINK Digital Optical Audio Switcher 3x1 swith 3x1 Switc... Three ways of optical fiber signal inputs switch to one set of SPDIF/TosLink signal receiving device Support Dolby Digital & DTS 5.1, Dolby Digital Plus; Support PCM Stereo 32kHz, 44.1kHz, 48kHz and 96kHz; plug & play Support 5.1 channels output up 130 ft; Input can be selected through remote control or button on the switch Over-voltage protection can prevent the damage caused by connecting unmatched power adapter to the machine Free lifetime technical support from the manufacture