Provides automatic switching between up to 4 Toslink S/PDIF digital audio inputs. When a signal is present the switcher will switch to the port automatically. Manual selection is also available. Works with CD, BluRay, game consoles and other digital audio sources. Supports PCM/LPCM and bitstream Dolby AC-3, Dolby 5.1, Dolby Digital and DTS. Includes power supply.