NIERBO 2x2 HDMI Video Wall Controller, 4K x 2K HD Display, 180 Degree Rotate, 8 Display Modes - 2x2, 1x2, 1x3, 1x4, 2x1, 3x1, 4x1, HDMI Input 4K & Output 1080P

Works great!!! Don’t come with any directions. But it’s easy to figure out. Plug and play runs smoothly picture looks amazing. A1 product so far so good. Will update if any bad happens 👍🏾

We were a bit disappointed when one quadrant wasn’t quite right. Requested a replacement and it worked perfectly. We are looking forward to college football rivalry weekend as well as NFL Playoffs and SuperBowl.

I got this because it was 4K and had direct audio. I had 1920x1080 one already that works and was half the price, but I wanted the full 4k. I set this up on two 75” tv’s and one tv had lines in it and constantly flickered. The one I had for half the price has no issues and has never flickered.

Sound issue resolved with the company's help. Amazing sound. It's just what I imagined when I designed my man cave. I contacted the company by email. They went above and beyond to help me. They were very kind and patient. Immediately responded to my questions. Walked me through troubleshooting. Sent me pictures and video to help fix the issue.Works great with my Samsung TVs. Great product Great company Great Service.

At first, trying this out we hit a snag. After getting everything hooked up and working we celebrated by watching the Cubs play. Our initial excitement turned to disappointment as after 10 minutes, the picture had a very distracting and noticeable pink tint. I contacted customer support (service@nierbo.com) and received a reply within a day, they would ship a new device to me and I could send the old one back. Fast forward a couple of days with new one in hand, I hooked it up and it works wonderfully! I have four 1080P tvs and each is showing full 1080P resolution. We watched the Cowboys play a preseason game and no issues at all. The only minor wish to make it perfect would be to allow 4 tvs plugged in but when you switch the display type it would only push out to those tvs. Meaning if I have 4 tvs and want to watch a game across two of them I wish I could change the display to 2x1 without having to unplug the other two tvs. Again a minor issue to an otherwise incredible product! I would highly recommend this to anyone looking for a bigger picture with better brightness than a projector. Also great customer service with the one that was bad. It happens and they were quick to resolve!

When I got it I saw that the image in the two bottom TVs were blinking. He has a lot of lines and I told where the cables and I change it but we didn't. Sound is great but the image going to the TV which was supposed to be 4k is not so I don't know if it's a setting process or is what but I didn't messing around with it and now she had happened. I can't get a fix

The media could not be loaded. No delay is display, great HD picture quality. Using with a splitter and over 50ft of hdmi cable. Getting the orientation is a little cumbersome but once it’s set it works great.Using in my party room in my basement, friends, neighbors, and family love it.

Not much for instructions but easy to figure out. Works great!!

Funciona bien pero no me dio la cuadratura correcta entre cada pantalla, y no se si si por alguna configuración en los aparatos, pero se apagaba continuamente