HEC

HDMI Ethernet Channel (HEC) is an HDMI 1.4 feature that allows a 100BaseT Ethernet connection over an HDMI cable. HDMI Ethernet Channel (HEC) technology consolidates video, audio, and data streams into a single HDMI cable, combining the 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.

With networking capabilities now available in a wide range of IP-enabled home entertainment devices, HEC eliminates the need for a separate Ethernet connection to each networked device in a home theater system (TVs, gaming consoles, DVRs HD Display, Blu-ray player, AV receiver, media player, set-top box, etc.) from a router or switch, and simplifies wiring and system installation.

HEC support requires a new cable design, which is designated as a "High Speed HDMI Cable with Ethernet".