Convert an SPDIF audio source signal to Digital Coax & Toslink either separately or simultaneously. The SPDIFCOAXTOS Two way Digital Coax to Toslink Audio Converter Repeater lets you extend & convert digital coax to Toslink audio, or Toslink to digital coax. This small form-factor coax toslink converter is an easy to use solution means that you can select the input signal you want to convert or extend, & simultaneously outputs both digital coaxial & Toslink audio signals without downgrading the audio signal, & provides an output signal that matches the quality of input audio, supporting 2 to 5.1 channel audio.