I purchased two of these 3ft cables and eight 10ft cables to use with two TVs that I have installed. When setting up my 4K Apple TV, I noticed that the UI was very sluggish and the video sometimes went black when launching Netflix, Hulu, etc. Thinking I had a bad cable, I tried another, and another, and another. I ended up trying all the SecurOMax cables I had and they all had the same issue. Eventually I got a Kzeux cable (another brand sold here at Revain) that I had on another TV and it worked great. The interface was buttery smooth and I had no problems playing videos. I don't know why these cables don't work with a 4K Apple TV, but they just don't work. However, they output 4K content when they work. I also had no problem using them with older Apple TVs.
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