I know that it is not easy to transfer large amounts of data over a long HDMI cable. Most cables won't have a problem with full 1080p Full HD, but at 25 feet long, few cables are good for 4K playback. I was fully aware of this issue and didn't expect it to work for a 4K signal. But it worked for 4K at 60 fps. I know it's not one of those "certified" 4K premiums and it may or may not succeed. I've been lucky. I tested it with a Samsung K8500 UHD Blu-ray player. The startup screen of this player is 4K 60 fps and it worked fine. I put in a couple of 4K Blu-ray discs (most 4K Blu-ray discs are 24 fps so it's much easier with an HDMI cable) and it worked without any issues. Then I tested a YouTube video with Costa Rica 4K 60fps and it worked too. In each test, I pressed the Info button on the TV remote to see the input signal and confirm the correct input resolution and frame rate. In summary, you will want to buy this cable for 4K. This is NOT guaranteed to work, but there is a good chance it will. I worked for myself. I think I'm lucky, but you can be too. If not, you can always return.
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