HDMI connection cable specification 1.4 (compatible with HDMI 2.0) Ethernet channel. The HDMI 1.4 specifications add a data and fast Ethernet (100 Mbps) channel for rapid bidirectional communication to the HDMI cable. This allows devices with internet connectivity and HDMI to share the internet connection with other HDMI devices. It also enables content sharing between multiple HDMI devices, all without the need for a separate Ethernet cable.

Return communication channel. The new specifications introduce a return communication channel responsible for bidirectional audio data transfer. It allows HDTVs to send the audio stream over the HDMI cable to the A/V receiver, reducing the number of cables needed.

3D over HDMI. The specifications of standard 2.0 define the splitting of the data stream into two stereo channels at a resolution of up to 1080p (1920x1080) for use in home stereo 3D systems.

Support for 4K x 2K resolution. The new specifications enable support for up to four times the high-definition (HD) resolution (4x 1080p), which is used in modern home theaters.

Automotive connection system. Specifications for cables designed for use in vehicles. It defines the fundamentals for distributing HD content across devices in the vehicle (multifunction console in the dashboard, integrated panels in the seats, etc.).

High-Definition Multimedia Interface (HDMI) digital audio/video cable interface. Supports HDMI Ethernet Channel 100 Mbps function (HEC) and Audio Return Channel technology (ARC).