HDMI Cable Power is the option to the HDMI 2.1a standard that will enable something great: long distance cables.

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HDMI connections have become the norm in the audiovisual field, and the HDMI 2.1a standard that was launched earlier this year offers better features than ever, but it does so with a classic limitation: the length of the cable it cannot be excessive if we want to maintain all the advantages of the specification.

In fact, as the length grows, that data transmission capacity decreases, but now there are a new option which solves that problem. It’s called HDMI Cable Power and will allow longer cables to connect devices that are much further away. That’s the good news, but there is bad news.

The meters will no longer be a problem

Normally the HDMI cables that maintain all the advantages of the standard do not exceed 5 meters and are usually much shorter. The problem is performance loss and signal attenuation as the cable gets longer.

However, now the HDMI Licensing Administrator (LA) – the organization that oversees the launch of new HDMI products – has just approved the inclusion in this standard of the HDMI Cable Power option, a feature that makes HDMI signal cables are not passive and become active cables.

The idea is simple: those new cables will be able to not only transmit signals, but also current (up to 300 mA) of the 5 V of the HDMI connector. Thanks to this current transmission, the signal is prevented from degrading, which in turn will allow for longer cables that retain all the properties of the standard.

the news is great for those who need long cables that for example they go from one room to another and still maintain all the advantages of the HDMI 2.1a standard, but this good news is accompanied by a somewhat less good, although logical.

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It is about the requirements to be able to use HDMI Cable Power, which are two. The first, that we have to have an HDMI cable that supports that option and a device that also supports itand at the moment neither of the two things exist.

The second, which will be important review how we connect those cables. As the HDMI LA states, “one end of the cable will be specifically labeled for connection to the HDMI source device (transmitter), and the other end of the cable must be connected to the HDMI destination device (receiver).”

Cable manufacturers are expected to start offering different types of HDMI cables soon —Standard, High Speed, Premium High Speed ​​and Ultra High Speed—, and only the last one will be the one that will be fully compatible with the HDMI 2.1a specification and with this new option.

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These cables with HDMI Cable Power can still be used as conventional HDMI cables, and will also have support for both ARC and eARC. At the moment there is no estimated date for its appearance, but of course they will undoubtedly propose a striking solution for various scenarios.

More information | hdmi.org

HDMI connections have become the norm in the audiovisual field, and the HDMI 2.1a standard that was launched earlier this…

HDMI connections have become the norm in the audiovisual field, and the HDMI 2.1a standard that was launched earlier this…

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