Like many audio, video, and data cables, HDMI cords can suffer from signal degradation at longer lengths—50 feet is generally considered the maximum reliable length. And it’s rare to see an HDMI cable longer than 25 feet in a store.
Does distance affect HDMI?
How far can you run 4K HDMI?
A 4k HDMI cable can be up to 3 meters long. Since 4K resolution needs a lot of bandwidth, it should only run in short lengths. Some devices best work over a range of only 1 to 2 meters.