I used a couple of slower ones (German make, around £30 for the two from PC World, not the most economical outlet) for about three years until I got rid of the

I used a couple of slower ones (German make, around £30 for the two from PC World, not the most economical outlet) for about three years until I got rid of the desktop PC. No issues. Just worked. Throughput fine at 4 mb/s Internet speeds which is all I used it for. If you need AV speeds, and if you have 'unusual' wiring, best ask on an appropriate forum supporting home networking or something.