This two way Digital Coax to Toslink Audio Converter Repeater lets you extend and convert digital coax audio to Toslink audio, or Toslink to digital coax.This easy to use solution allows you to select the input signal you want to convert or extend, and outputs both digital coaxial and Toslink audio signals.This digital coax to Toslink audio converter/repeater does not downgrade the audio signal, and provides an output signal that matches the quality of input audio, supporting 2 to 5.1 channel audio.