4K HDMI Multiviewer 4X1 with KVM PIP,4HDMI/4PC in 1 Out Seamless Switch 1 2 3 4 Screen Supports 4K30Hz Input and 4K60Hz ouput KVM(Keyboard&Mouse Control Computer) IR RS232 8Modes 1×1 2×1 3×1 4×1 etc

This HDMI multiviewer combines up to 8 HDMI inputs into a single 4K output, allowing easy switching and viewing of multiple sources simultaneously. With 16 view modes and integrated KVM functionality, it supports USB mouse and keyboard control, making it ideal for complex setups like control rooms or streaming studios. Remote control options and RS232 connectivity enhance convenience. In practice, the multiviewer handled all inputs smoothly with crisp 4K visuals and fast switching. The KVM feature is a game-changer for managing several PCs from one station. Setup was straightforward, and the variety of layout options makes it highly adaptable for different monitoring needs.

After waiting a week delay to receive it, the quality isn't just there. Even in full screen the screen is filtered and appears blurry. KVM with pip/pop/splits are really expensive but I'm starting to understand why. Those cheaper versions are NOT an option as it degrades dramatically the content displayed. So I'm back at switching my inputs on my monitors and use a simple kvm instead for mouth/keyboard.

I was so pleasantly surprised by this multi-screen viewer! The performance is very stable, I watch multiple scene images without delay or lag! And with the stable output of 1080P HD quality, I can clearly see every detail of the action! After comparing many models, this is the only one that meets my 16-channel signal to display HD images at the same time, the mode is very practical! Would like to buy another one!

So...this is not for multiple monitors (such as in, say, a video wall controller). This is so multiple devices can use a single monitor. Note: dual monitors are not supported here. This is good if you have, say, 3 or 4 game systems and 1 big TV. Or a bunch of servers in a rack, and one small 4k monitor. If you're wondering, why only 4 stars...the refresh rate tops out at 60hz, which limits the usefulness for gamers, many of which have refresh rates between 100-150 hz. Some even higher. So, if that's you, this isn't your multiviewer. You'll want to find one that supports higher refresh rates. The biggest plus is the wireless remote. So many of these things come with wired remotes (or no remote at all) that the wireless remote is refreshing. Overall, my only complaint was the lack of support for high speed refresh rates. Beyond that, I found it to be quite useful and it works quite well. 4 stars.

This 16×1 multi-screen viewer is really powerful! It can display my 1, 4, 6, 8, and 16 way screens on 1 screen at the same time, so I can do multiple places monitoring by myself! And this unit is very good quality, solidly built with a frosted casing that feels great in your hand. There is no black screen flashing during use! Very satisfied with the product!

Works great! I've never had so many monitors going at once, but it works great so I have no complaints.