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HDMI Q & A

Recently, HDMI Licensing, LLC announced that cables would be 

tested as Standard or High-Speed cables.

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 Standard (or “category 1”) HDMI cables have been tested to 

perform at speeds of 75Mhz or up to 2.25Gbps, which is the 

equivalent of a 720p/1080i signal.

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 High Speed (or “category 2”) HDMI cables have been tested 

to perform at speeds of 340Mhz or up to 10.2Gbps, which 

is the highest bandwidth currently available over an HDMI 

cable and can successfully handle 1080p signals including 

those at increased color depths and/or increased refresh 

rates from the Source. High-Speed cables are also able to 

accommodate higher resolution displays, such as WQXGA 

cinema monitors (resolution of 2560 x 1600).

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 There are many HDMI Adopters working on HDMI solutions 

that extend a cable’s effective distance from the typical 

10 meter range to much longer lengths. These companies 

manufacture a variety of solutions that include active cables 

(active electronics built into cables that boost and extend the 

cable’s signal), repeaters, amplifiers as well as CAT5/6 and 

fiber solutions.

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 All HDMI products are required to be certified by the 

manufacturer as part of the HDMI Compliance Test 

Specification. However, there may be instances where cables 

bearing the HDMI logo are available but have not been 

properly tested. HDMI Licensing, LLC actively investigates 

these instances to ensure that the HDMI trademark is 

properly used in the market. We recommend that consumers 

buy their cables from a reputable source and a company that 

is trusted. 

 

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