PorttaHDMl 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.

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

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. 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.

Best product in good price

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!

Unit just does not work. We are a AV company so we know video production work. purchased this for a school play for our client and was unable to get unit to work. confirmed video to unit buy nothing passed though. We had ordered it early before we actually needed it but by the time we went to use it the return fr it had passed so I out the cost of this. I recommend to buy another product.

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.