PORTTA HDMl Video Wall Controller 2x2 4K, Video Wall Processor with 11 Splicing Modes, RS232, 180° Rotate, Audio Extractor, 2x2,1x2,1x3,1x4,2x1,3x1x4x1, 4 tv Screens into 1 Wall Display

The device was easy to setup and works well. Documentation is sparse but it's not hard to figure out the operation. It says 4KHD but the fire stick that I used warned that the device could not display at its highest resolution and offered a lower one. Overall, a good value for the money.

Worked perfectly!!! Easy to use. Plug and play!!! Follow directions and you will have no issues. Would highly recommend.

The media could not be loaded. I was initially unsure about this brand, but the price fit my budget, so I decided to give it a try. The product arrived on time and in perfect condition, and what I appreciated most was how easy it was to use—no complicated setup, just plug and play. I would highly recommend it!

The media could not be loaded. Very good product for the money. I used it right now for a 1 x 2 side by side configuration and it works great. It would have got 5 stars but it pixelates (About every 30 mins) for about 10 secs. Not bad at all and still worth the money.

Happy with my purchase. The item was exactly as described and works as expected and I don’t notice any audio or video delay when using it

The media could not be loaded. Works great for the 4 split screen tv set up I put in my son’s room. Cheap alternative to the several hundred door set ups so the average family of 7 can afford nice things

We bought this because our TV only has one HDMI port and we need two to accommodate Apple TV and our Sonos sound bar. I installed the splitter last night and the TV just randomly turned off every 10-15 minutes while we were watching a show. It's never done that before. And hasn't done it since removing the splitter so it's definitely the splitter.The bigger issue is that a hacker downloaded a movie using my Amazon account last night. No one else has access to my account, we didn't download the movie, and Amazon said it was downloaded to a Roku device which we don't have. The timing of this is really suspicious and makes me think this splitter had something to do with it.Bottom line is the splitter doesn't work and could be used to steal account access.

with only one HDMI input can't switch between sources or display 4 separate at one time. If you want a Video wall only this works fine. If you're a football fanatic as I, then you'll need the 4x HDMI input/ output.