MT-VIKI 4K HDMI Multi-Viewer 9x1 w/IR Remote, 4K@30Hz Seamless HDMI Switcher 9 in 1 Out for PS4/PS5/Security Camera

UPDATING MY REVIEW TO 5-STARS! The tech support offered was exceptional! There are a few things you should know about if you have issues:1. This will ONLY work out of the box on a monitor that supports 4k resolution! You will need to adjust the resolution down hitting one of the hotkeys, in my case - to adjust to 1920x1080 @ 60hz I had to hit "Home+Home then H and 2" on my keyboard. It then displayed ok!2. For the hot keys to actually work, you MUST plugin your keyboard into the BACK keyboard port and NOT any of the front USB ports or your commands won't work! I'm very used to plugging into front ports as I have a laptop dock with front keyboard/mouse ports and am very used to that.3. Watch the video to find out how to display the dual and quad configurations on-screen! They are NOT in the manual that I could find!This is a very GOOD product and I hope the instructions become clearer in the future!

Works very well as advertised. Has a very crisp and clear picture. Switches between computers pretty fast (about 1 second).

Works decent switching between computers.However, when I choose a mode such as PIP, so I can have a small window showing what is on the other PC, the main window PC gets very fuzzy. No fun seeing fuzzy letters.

so.. I own 3 hdmi multiviewers. 1 paid $240 for the best one I have, which was worth it.I paid about $50 for the worst one I have which is blurry, not truly 4k even though it claims it was.And this one is priced in the middle of that, which is fair, since I would rate it as the mid quality product.In fact I would say that many sellers would try to sell this one for perhaps twice as much since it does work well as far a picture quality and also no lag for gaming. It does not have as many useful features as my top of the line one does. not as many screen configurations that I would like. But like I said, for the price/quality ratio, this is probably your best bet.

This box has saved me from my constant headache of utilizing a keyboard and mouse switch!now I can utilize my monitors consistently without delay.