ITEM NAME:5V DC/1A Optical Coax Toslink Digital to Analog Converter RCA L/R Stereo FIK.Input Audio: Coaxial or Toslink digital audio. Input audio connector: Toslink〠1XRCA(Coaxial). Function: Converting coaxial cable or Toslink digital audio to analog L/R audio. It converts Coaxial or Toslink digital audio signals to analog L/R audio.