HDMI Info and FAQ

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HDMI Cable


HDMI stands for (H)igh (D)efinition (M)ultimedia (I)nterface.

HDMI is currently the most prolific standard for audio/video connectivity, and has even gained traction in the computer industry. Featuring a modern sliding contact design instead of the bulky screw-on style (like DVI and VGA), and with unallocated pipeline to accommodate future technologies and speed increases, HDMI is attempting to finally unify all digital media components with a single cable.

HDMI 2.0 takes advantage of this expansion to further increases the bandwith limit to 18 Gbps (from its original 5 Gbps), to allow for higher definition 4K UltraHD video, audio, and even networking.


The high bandwidth of HDMI is structured around delivering the best quality digital video and audio. Capable of all international frequencies and resolutions, the HDMI cable is designed to replace all analog signals (i.e. S-Video, Component, Composite, and Coaxial), as well as UHD and HDTV digital signals (i.e. DVI, P & D, DFP), with no compromise in fidelity from the source.

Additionally, HDMI is capable of carrying up to 8 channels of digital-audio, replacing the old analog connections (RCA, 3.5mm) as well as optical formats (SPDIF, Toslink). HDMI 2.0 added support for High Dynamic Range (HDR) video as well.


HDMI 2.0, released April 8th, 2015, is a superset of all previous HDMI versions, with the addition of HDR video.

HDMI 2.0 offers a higher video throughput, at 600Mhz, to allow for 4K UHD displays, 32 channels of audio at up to 1536khz, 21:9 aspect ratio support, and dynamic audio-video synchronization.


To function as an all-inclusive interface, HDMI is being implemented in virtually all multimedia devices, from HDTV's and DVD players to computers and stereo receivers. It is compatible with DVI products and can be converted with a simple adaptor plug.

HDMI and HDMI 1.3 are also entirely cross-compatible, and can be easily connected with a mixed-connector cable.


HDMI is already permeating the home theater market, and is on most every HDTV, DVD player, and receiver available today. It has become the standard for entertainment solutions, but is facing competition in the PC industry on a couple of fronts.

The open-market DisplayPort connector, is looking to overthrow both DVI (in the computer industry) and HDMI (in the home theater industry). It has also branched off into Mini DisplayPort.

The already-mentioned DVI, which used to be fairly ubiquitous in high-end computer hardware, has slowly been replaced by either HDMI or DisplayPort.

Thunderbolt, another all-in-one format that carries even more type of data than HDMI, has been making inroads among media producers, but its higher price has mostly kept it there.