SIIG S/PDIF Coaxial/TOSLINK 2-Way Converter (CE-CX0011-S1) Switches between Coaxial or Toslink inputs to Coaxial and Toslink outputs simultaneously Metal housing provides excellent RF shielding for superior signal quality while delivering excellent heat dissipation for dependability and long life Built-in audio amplifier to ensure signal integrity Optical cable length: Up to 16 feet in and out of the converter Consumes no more than 7 watts of energy