I used these CL2-rated HDMI cables for a short in-wall run between jacks for my wall-mounted TV. I've installed 3 TVs like this, and it has worked perfectly every time.

My latest wall-mount TV is being used as a 55-inch computer monitor for my work computer. It works great at 4K resolution. I'm not doing any gaming, so I can't comment from that perspective.

Since the cables look like normal cables (not overly think, and no weird covering), I also use some of them for connections that aren't in the wall - for example, for the connection from the wall jack to my computer.

3 hdmi cables pack good deal work great