Extends either S/PDIF Toslink or Coaxial audio signal up to 990ft (300m) over Cat5e/6 UTP cable. Supplies clear digital audio over long distance with no signal loss. Experience the highest quality audio, compatible with Dolby Digital, DTS 5.1, DTS-HD, 2ch PCM audio formats. PoC (Power over Cable) technology allows both the transmitter and receiver units to be powered using only one power adapter connected to the transmitter. Metal housing offers better RF shielding and efficient heat dissipation for dependable performance and long life.