There is no exact “maximum length” for an HDMI cable, but past a certain number of feet, you will start to notice a degradation of the picture quality and artefacts depending of what you’re sending over the cable. Longer cable lengths and higher resolution media (UHD) will cause more problems.
Does length of HDMI affect quality?
Do longer HDMI cables lose quality Reddit?
Yes. Standard cables are passive and long lengths degrade signal.
Is a 10 ft HDMI cable too long?
Does longer HDMI cable matter?
In theory, there is no real maximum length to how long an HDMI cable can be. But the longer your cable is, the more the type of HDMI cable you buy can have a real impact on the eventual quality of audio and video you hear and see at the other end.
