This technology consolidates video, audio and data streams into a single HDMI cable, combining the unmatched signal quality and convenience of HDMI connectivity with the power and flexibility of home entertainment networking. It incorporates a dedicated data channel into the HDMI link, enabling high-speed, bi-directional networking at up to 100 Mb/sec.
The audio return channel in HDMI 1.4 enables a TV, via a single HDMI cable, to send audio data upstream to an A/V receiver or surround system, increasing flexibility and eliminating the need for a separate audio cable.