Review on FeizLink 8K HDMI 2.1 Fiber Cable 50ft - 4K 120Hz, 8K 60Hz, 48Gbps, Dynamic HDR10, eARC, HDCP 2.2 - Compatible with RTX 3080, RTX 3090, Xbox Series X, PS5, LG C9, Samsung Q90T, TCL, Sony by Dipp Samrock

This cable works great! It has excellent build quality. The metal body and well-marked text give it a premium feel. This cable flawlessly transmits a 4k @ 120Hz signal at 40 feet with no issues. I tried it with Xbox Series X and I can play 4k @ 120hz. I tried another 25ft cable that was much thicker than this one and it failed to send a 4k signal despite claiming it did. I use this to route from my desk to a PC that I put in a closet to keep the temperature in the room down. The cable is surprisingly thin and easily goes through corners. Because it is a fiber, it can be sensitive to bending. I haven't tried bending or bending them and haven't seen any warnings about it. As long as you let it flex naturally you shouldn't have a problem. Haven't tried ARC/eARC and I don't have an 8k signal to test this. It is well packed in a cardboard box along with high quality cable ties that can be easily reused. If I need another long run I will definitely take another one of these. This quality and longevity justify its price.