Bought to boost signal in loft conversion as the TV in my loft bedroom struggled at times with streaming HD content despite Internet browsing being perfectly fine. I would have preferred to use a wired powerline adapter plugged directly into the TV but in the socket I wanted to use none of these powerline adapters worked at all which I suspect has something to do with the wiring in my house as these adapters worked in every other socket. Anyway, streaming HD content both using iplayer and plex media server works fine and is noticeably faster than previously. I would recommend any of this product range as they really are easy to set up and do make all the difference particularly if you have media server running with very high quality content. Not tested with 4K content, 1080p only.