High-Definition Multimedia Interface (HDMI)

An HDMI connector supports an all-digital link between an HD cable set-top or satellite receiver that combines digital video and digital audio on one connection rather than using separate connectors for each function. This delivers extremely high-quality digital video and audio. HDMI is fully backwards compatible with DVI.

HDMI 2.0, which is backwards compatible with earlier versions of the HDMI specifications. Bandwidth up to 18Gbps.New functionality includes:

4K@50/60, (2160p)

32 audio channels

Up to 1536 kHz audio sample frequency

dual video streams

wide angle theatrical 21:9 video aspect ratio

Dynamic synchronization of video and audio streams

CEC extensions provides expanded command and control of consumer electronics devices

HDMI 2.0b

HDMI 2.0b, which is backwards compatible with earlier versions of the HDMI specification.

Capable of High Dynamic Range (HDR) video

Bandwidth up to 18Gbps 4K@50/60 (2160p)

Up to 32 audio channels

Up to 1536kHz audio sample frequency for the highest audio quality.

Dual video streams to multiple users on the same screen

Simultaneous delivery of multi-stream audio to multiple users (Up to 4)

Support for the wide angle theatrical 21:9 video aspect ratio

Dynamic synchronization of video and audio streams

CEC extensions provide more better command and control of consumer electronics.

HDMI 2.1: When will it be available ?

A new version of HDMI is nearly with us (officially specced in Nov 2017)....can support resolutions up to 10K. The new HDMI 2.1 cables will allow faster refresh rates, including 8K resolution video at 60 frames/second and 4K at 120 frames/second.