I’ve bought a half dozen different hdmi cables and had audio/video signal dropout problems with them all. All the cables I purchased were18gbs-gigabytes per second- cables(which I would have thought would be fine). I found these cables that were rated at 22gbs and tried them out. THEY SOLVED MY PROBLEMS! If you have a 4K Apple TV on max video/audio settings don’t wast time/money on other cables and just buy these. They will work perfect.