Review on 🔌 In-Wall High Speed HDMI Cable 50 ft - CL3 Rated - Supports 4K, 3D, Full HD - 2160p Ethernet - Audio Return - 50 Feet (15.2 Meters) by Gotdat Burton

Hidden at the edge of the basement between my gaming PC and my Onkyo TV/receiver. Actually I bought it a year ago to replace a dead "HDMI ribbon cable" but I never got it to work. Sat down and fiddled with the settings to find that the 40ft version could actually only handle 4K at 30Hz. 59/60Hz screen dims. Disappointing considering this thing is SUPER thick. I hooked up a cheaper 25ft cable just for testing and it works fine at 60Hz. If you're going to use it for gaming I'd look elsewhere.