Review on J-Tech Digital 4K HDBaseT HDMI Extender: Ultra HD Over Cat5e/6 Ethernet up to 230ft, HDMI 2.0 HDCP 2.2/1.4 Support, RS232, Bi-Directional IR and PoC Included by Bob Larson

I bought several of these to replace my old (RGB) CAT5 component system. Since my new TVs switched to HDMI, my old system no longer supported the best picture standard (and some TVs don't even have RGB inputs). Replacing the old RGB over CAT5 modules was easy and the new system works well. So far I'm only streaming 1080P content with great picture quality. I intend to start using 4K content and will update if anything goes wrong. I like that the power comes from the transmit side so I don't need an outlet or power supply on the TV. The only downside is that the old RGB system "lived" behind the bezel on the wall, giving the TV a clean look. In fact, the HDMI receiver box is effectively hidden behind the TV in most installations, and a 'blank' faceplate with a clean hole allows the CAT5 cable to pass through from the wall - which I prefer to add even more connectors in the signal path use a CAT5 socket. So far I've only used the picture features because the existing audio system (connected to freestanding local speakers, not TV speakers) is in many ways better than the speakers in most TVs. My control system works as before and does not require CAT5 IR capability, so this feature has not been tested either (although J-Tech includes all IR remote cables!). However, this additional flexibility is good for future extensions. What is not well described in the product description is that the system has blue LEDs in both the transmitter and receiver which are very informative and indicate the correct connection of power and signals. You can add black tape to reduce flickering in a dark room. Another minor complaint is that this version does not fully support routing a CAT5 to multiple receivers and these receivers/transmitters are only sold in pairs. It is not clear what features will be disabled and so far it has not affected my system. J-Tech has other models that support multiple receivers from a single CAT5 line. J-Tech technical support was excellent and very helpful in my rather difficult situation. One final note: HDMI cables vary in quality — even those that claim to be HDMI2 or 4K compatible. I have had multiple installation issues including 4 pairs of J-Tech and EVERY issue was due to a bad HDMI cable. You'll need a couple of HDMI cables - buy the best one, then swap suspect cables until you find the bad one.