When we first wrote this article in late 2020, there were no ultra-high-speed HDMI cables that use fiber optics on the market. HDMI cables that incorporate fiber optics might be able to deliver better performance over longer runs. Get Certified Fiber Optic Cables for Longer Distances If you’re using a long cable and experiencing issues, test a shorter one. For lower resolutions, the upper limit is somewhere between 20 (6 meters) and 50 feet (10 meters). There isn’t an “ideal” cable length, but for 4K resolution and high frame rates (120Hz), it’s recommended you use an HDMI cable that’s no longer than 10 feet (3 meters). That’s why the best cable is the shortest one you can get away with that matches the bandwidth requirements. The longer the cable, the more the signal can degrade before it reaches its destination.
This is where HDMI cables can get very expensive. It can be tempting to cheap out on a cable, especially when it comes to long runs.
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