MT-VIKI 4K Video Wall Controller 2X2 with 2 HDMI Input+ 4 HDMI Output, TV Wall Controller 4K30Hz Support Point-to-Point Display + 180° Degree Rotate + 3.5MM Audio [Non-Stretching & Non-deforming]

Rating: ★★★☆☆ The video wall controller is just okay. It did a good job of sending the matrix feed to all 4 TVs, and the setup was fairly straightforward even though the instructions were extremely lacking. However, I ran into a major issue with adjusting the bezel settings both horizontally and vertically—the picture wouldn’t align correctly across the screens, which was pretty frustrating. I tried multiple configurations, but none worked perfectly. If you’re looking for precise alignment, this controller may not be the best option. But if you just need something that reliably sends the feed to multiple screens, it gets the job done. Return the item for a different manufacturer. Much happier with the new product.

Very easy to use but for some reason you can’t adjust the bezel. Controller has the buttons to do so but it doesn’t do anything. Does anyone have any idea how to fix it?