OREI 4K 4x4 HDMI Extender Matrix - UltraHD 4K @ 60Hz 4:4:4 Over Single CAT5e/6/7 Cable with HDR Switcher & IR Control, RS-232 - Up to 230 Ft - 1080P Downscale - 4 x Loop Out - 4 Receivers Included

Purchased for a sort of media cabinet i'm building that has two Raspberry Pi 4's, a mini Windows 11 computer, and an extra input/output for a 3rd Raspberry Pi 4 to plug in as a test. I'm also using the Orei HDA-912 audio extractor (two of them), plugged into the loop out hdmi on two of the outputs. I need the same content extracted from a playback but at different volumes, so using two of those audio extractors make that possible. No interruptions on an output if I select another output to that same source. I did have to perform a factory reset...I couldn't log into the web interface, but was able to get to the login screen. Only way to reset it to default is via an RS232 command, which it came with the cable to connect to the rear of the unit and has a 9 pin female plug that will plug into a computer serial port, but I had no working computer that possessed such port, so had to acquire a USB to serial cable at a local retail store. I ended up adding that RS232 to USB cable to my installation, as I found a way to remotely control it (and thus automate it as well) by having the mini Windows 11 PC send commands to the Matrix using a simple batch file (power on/off, select inputs/outputs, or recall a preset). Only power supply needed is the one that connects to the Matrix, it is able to power up to 4 receivers via the CAT cable.

Plug and play, gotta love technology. The only thing I will say is I have cat5e cable and 1080 signals come thru fine, when switched to 4k input, I get white blocks all over the screen. And sometimes I do get white dots flickering on the screen even in 1080p but only on my newer Sony 75” tv for some reason, it’s only noticeable in dark images, and I attribute that to the wiring not being cat6 or higher, I plan to change the wall outlets the receiver is plugged into, as sometimes I replug the cords into the outlet and the dots go away, but again only my 75”, other TVs 55 and below no issue at all. IR sensor placement is crucial, inches make a difference. Am able to feed Comcast box and security nvr to all my TVs now. Programmed all remotes of different inputs devices into logitech hub based remotes at each receiver station with the Matrix transmitter ir taped to the ir repeater of the logitech Harmony remote. Works perfectly.

Bought a new RV that had multiple TVs controlled with a HDMI 4x4 matrix switcher. Problem was that any signal more than. 720 would not send a consistent signal to any of the TVs. Signals would drop every few seconds and was unwatchable. I purchased this REI 4x4 HDMI 4x4 matrix. Changed out the matrix and each of the receivers. Just like that, now everything works perfectly. HD Now on every TV with no loss of signal.,

Right about a year old and just starting to have issues. Randomly picture will go pink (all on tvs). Need to cycle power on the main unit and it will correct it self. Also lose connection to some tvs at times. Need to cycle power at the mini box on the TV to correct.

This unit surprised me. It relplaced two hdmi 4 port extenders and is 4K. Out of the box it defaulted to 1080p, but after figuring out how the web interface works, its now almost perfect. Its lacking wifi and ARC support, but for the price its a great value and offers more options than what i had previously.

It didn't work with directv on non high definition, no sound and poor picture. The signal that comes out of a dome antenna.

I bought 2 and both were bad out of the box. One had no power the other did not have all the outputs working. Did not know until after the 30 day return period so I had to deal with there warranty department and that was not ideal. They kept thinking it was installed wrong but after MANY emails and trying all the stuff they wanted I finally got them sent in and warranty replaced through Orei directly. Wish I could have just got them replaced quickly but the main point is I got them replaced after the 30 day return period. TEST it when you get yours to make sure you don't have the same problem

We ordered the OREI 4X4 Extender Matrix to replace a projector system in our church. The Extender is very easy to install and operate. We initially experienced problems getting a signal over 65 feet from the extender to our new LED monitors, and our configuration required a minimum of 135 feet. We had hoped to use the existing CAT-7 Ethernet shielded cabling we had in place for the projectors. It was shielded but was the FLAT white style. The OREI technical support team suggested that we use ROUND shielded CAT-6 cable. We purchased 150 ft. of the round cable to test the recommendation, and it worked great. We have now replaced all our existing cabling with the round shielded cable and the video system completely meets our expectations. Based on our experience, I highly recommend that all users of the OREI UHD48-EX320-K Extender Matrix use only ROUND shielded Ethernet cable.

I am very happy with this matrix. I needed it in the mosque to distribute signals to the 3 TVs. Installation was comfortable, and I did it myself. It works perfectly. Highly recommend

Exactly what I needed to complete my set-up. Item arrived in good time and as described

Very happy with this matrix. I needed it my motorhome to distribute signals to the 3 tv's. Had to have it professionally installed as I wasn't comfortable with doing it myself. It works perfect. Highly recommend

It worked as expected just out of the box and is extremely easy to use.

Tried it on an xfinity box to 4 different tvs. Works steady. Impressed. Worked right away.