Works really nicely but the receiving unit runs outrageously hot! I've used it with a GTX 1080 and now a GTX 1080 Ti to play video games from my PC to my 4K Samsung KS8500 series TV. I strongly recommend keeping it isolated from any other equipment, and place it in an area where it is very well ventilated. I keep it on top of my AV stand with no other components within 12 inches of it. I've still had it overheat on numerous occasions. I place it upside down so that the vented bottom of the case is facing upward. This helps, but when the room temperature gets to 75F or slightly above, I need to place a small fan next to the HDMI receiver to keep it from overheating. I also suggest that you unplug at least the receiving unit from the POE Ethernet cable in order to keep it from being powered unnecessarily, and thus avoiding it from heating up when not in use. When the unit overheats you will see artifacts (random colored pixels) on your TV and ultimately it will just stop outputting signal altogether.

Aside from the issue of heat, I was pleasantly surprised to find that the HDBaseT technology is actually capable of displaying 4K video over an Ethernet cable. I've only played racing games, but I have not had any concerns with lag. Altogether still happy with the fact that this allows me to keep my gaming PC in the basement and play on my TV upstairs.

This device is a tremendous improvement over the gofanco HDBitEXT!!! I purchased the AV Access 4KEX70-L to replace the gofanco device which was not able to provide a crystal clear picture over 40' of CAT6. For $30 more, this device is providing a 10x picture quality improvement. My blacks are truely black and the picture is smoother! I streamed some 4K content and was finally happy with my TV investment.

This thing totally rocks. It is the for real 10Base T chip set. I'm using these going forward to replace the $500.00 balun set I have been offering my customers for the last 3 or 4 years. The fact that it includes IR command relay with the emitter and the receiver included in the package and also does RS-232 (which could be used with VISCA adapters for Sony PTZ control) for this low price, makes this a slam dunk. I've used it in 3 different settings so far and it performed well in all of them. It handles the HDMI handshake issues great. If they had a six star rating I'd give it that.

Nothing beats running an HDMI cable, but this is the next best thing.

Bought a new house. Running HDMI would have involved tearing up drywall and paint matching. Not something I was excited about.

I first bought a wireless HDMI set-up. I had syncing issues and when it would sync, the audio was off by a few milliseconds. Enough to make it seem like a bad kung-fu movie.

I then tried this system. Immediately sync-ed up, perfect 1080p picture and I couldn't spot any sound issues like i had with the wireless set-up. It's also nice that the second unit had POE so one less thing to worry about. Also the devices are pretty small.

The product is great, I have two of these.
They do exactly as I expect, save for one small issue I had with the power plug on the first unit that was quickly fixed with a deft twist of a screwdriver.
Two detail I really appreciate: POE injection on BOTH ends, as well as bidirectional IR and serial passthrough.
Cheaper brands may give you the option of one way IR, or Serial, but rarely both. and even more rarely, the option of controlling which way the IR passes.