The EARC-EX330-K can transmit HDMI ARC/eARC and S/PDIF audio signals up to 100m/~330ft over a single CAT 6/7 cable. It supports CEC pass-through between HDMI ARC/eARC input port and ARC/eARC output port. For TVs without an ARC/eARC port, the extender provides an independent S/PDIF audio pass-through channel to transmit S/PDIF audio from the S/PDIF IN port on the Transmitter to the S/PDIF OUT port on the Receiver. This is a fantastic plug and play solution for sending HDMI ARC/eARC and S/PDIF audio from a TV back to an amplifier, AVR or a multi-room audio system. | Orei | | HDMI eARC/ARC & S/PDIF Audio Extender | 330ft | cat6 | Black | Best Buy