BOOBRIE Video Wall Controller 2X2, Video Wall Processor 4K x 2K HD Display HDMI and DVI Input, 1080P@60Hz Output, 5.1CH Audio,180 Degree Rotate, 9 Splicing Display 2x2, 1x2, 1x3, 1x4, 2x1, 3x1, 4x1

This is an excellent device if you want to build a TV wall. I don't know how useful it is for home use when you can get a 70–80-inch 4K TV nowadays for cheap, and it's pretty much all you need. But for a large conference room, a concert, or a venue, this thing is invaluable. See, with this device you can stack together 4 70-inch TVs and stitch them together making a whooping 140-inch screen! One great thing about this controller is that it has multiple TV configurations, practically any layout is supported - 2x2, 1x2, 1x3, 1x4, 2x1, 3x1, 4x1. I couldn't get why I would need the image rotation feature at first and the description is not very clear, but then I realized that some TVs have a thick bezel at the bottom. So, when you stack TVs together, you want the thinnest bezel between the TVs, and in this case, you would rotate the top TVs upside down. The controller allows rotating the image of such upside-down TVs as well, so that the image would be properly displayed! Great feature! The only drawback I found in this TV wall controller is that it can output only 1080p at 60Hz HDMI signal. It would be awesome if it could split 8K input signal into 4x4K screens to deliver the best resolution possible. But the asking price of only around 60 bucks (at the time of writing this review) I’m not complaining. Also, it outputs 60 Hz signal, which is much better and smoother for dynamic videos or gaming. This is especially important when you have high action videos like sports. End-to-end, this is an excellent TV wall controller. Well-built, all metal housing, good heat dispersion, and relatively small. Highly recommended!Bottom line:This Boobrie TV wall controller is ideal for large venues like conference rooms or concerts, allowing you to combine 4 TVs into a massive screen with various layout options. It features image rotation to minimize bezel gaps and supports multiple configurations. However, it only outputs a 1080p HDMI signal, which might not be optimal for high-definition video. Overall, it's well-built and recommended for its versatility and performance. Solid 5-stars product.Pros:1. Versatile TV layout configurations.2. Support for 60 Hz signal output.3. Facilitates minimizing bezel gaps.4. Durable all-metal construction.5. Efficient heat dispersion.6. Compact design.7. With remote control.Cons:1. Limited to 1080p output.

Wow, I am so disappointed and frustrated! The images on a few of my TVs are just horribly stretched and distorted, covered in pink stripes, and they're anything but high-def. And to add insult to injury, the remote control won't even let me switch modes or rotate the screen 180 degrees. This is a far cry from what the product ads promised. Beware, folks, and don't let this happen to you like it did to me!

.Very nice quality metal construction. Solid. No wiggle to the connectors when plugging in cables.The instructions are well written and well illustrated, a lot in color. Very easy to switch the modes. This unit is a real winner for me !