J-Tech Digital Premium Quality SPDIF TOSLINK Digital Optical Audio 4x2 Matrix (Four Inputs Two Outputs) 4 Inputs / 2 Outputs for Optical / SPDIF / TOSLink Audio; A True Matrix for Any Input to Any Output: The two outputs share the same input or be from two different inputs. Supports Dolby Digital & DTS 5.1, Dolby Digital Plus; Support PCM Stereo 32kHz, 44.1kHz, 48kHz and 96kHz; New & Play Supports 5.1 channels output up 15 ft; Input can be selected through remote control or button on the switch Input and output can be selected through remote control or button on the switch Free lifetime technical support from the manufacture and free 1 Year Manufacturer Warranty from J-Tech Digital.