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June 13, 2022

Comment – New HDMI Version Fixes TV Cable’s Biggest Problem

HDMI 2.1a Amendment 1 is a new HDMI Version which has been announced with a feature to allow more power than the standard HDMI interface to support the development of active cables. As resolutions and frame rates go up, the length of passive cables is more restricted. The new Cable Power feature goes beyond the current level. Cables will likely be supplied with optional power connectors if source devices do not support Cable Power. The TechRadar article is here, and there’s an FAQ here.

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