How long can an HDMI cable be?
HDMI was designed to use a standard copper cable but it does not specify a maximum cable length. In general, the better the cable construction the further the distance it can carry the signal. But it is important to note that it is not only the cable that factors into how long a cable can successfully carry an HDMI signal, the receiver chip inside the TV or projector also plays a major factor. Receiver chips that include a feature called “cable equalization” are able to compensate for weaker signals thereby extending the potential length of any cable that is used with that device. You can also use a repeater to regenerate the signal and effectively extend the distance of a cable. We recommend using at least 28AWG cables for shorter distances up to 10m (about 33 feet), and thicker 24AWG cables for anything above 10m.
