IOGEAR KVMP 2-Port 4K Dual View DisplayPort Matrix with USB 3.1 Gen1 Hub and Audio 4096x2160 @ 60Hz Mouse Crossover Switching 7.1 Audio Mixer Windows MacOS Linux - TAA Compliant - GCMS1922

Good. Does what it says it can do if a bit slowly. But that doesn't matter. It handles 4k60, it recognizes wide screens through windows. I haven't tried it in Linux yet but I will. With key commands it allows PC to PC mouse and keyboard live auto switching so as you swing your mouse over to the edge of the screen it automatically crosses over to the other PC. It beeps every time but hey - go team.I've only had it for a week so time will tell about actual internal build.It is built very well save one caveat: The USB ports on the back of the unit flexed when I pushed in the PC to USB cables. Very odd but they are a touch flimsy compared to the rest of the unit which is sturdy.Notes on connection. Make sure the Display port cables that come with it are all plugged in the same direction; so labeled ends on the same side of the connections. I have never met a unidirectional DP but these cables are very touchy to path and direction so be aware. Still no biggie.HDMI is directional if they are actually meeting spec. so whatever cables you use, match them in type and length and make sure they are going the same direction for each PC otherwise you may have switching issues. It may fail to see the monitor. Mine did at first because I made a rook mistake with cable direction.The unit comes with DP cables and USB connecting cables. It doesn't come with HDMI cables. If you are pushing 4k60 or above make sure your HDMI cables are very good. Signal and packets are very much a pain in the ass with HDMI. So the shorter, robust and larger gauge they are the better. I would put this less than 6 ft from your monitors. My connections are less than two meters to the unit and less than a meter to each monitor input.My favorite ability second to real-time, no flicker mouse and key switching is it's ability to use different monitors - model and make. It isn't mentioned but it does. You still have to know how to manage advanced monitor settings in Windows to make it work so this is not a plug and play experience unless your monitors are matched and don't need any view modifications.I have one 4k30Hz horizontal writing monitor and one landscape 4k60Hz+. I have an AMD free-sync monitor and I had to reboot a couple of times to allow windows to recognize the pass through to the AMD software connecting it as a free-sync monitor.This is the only KVM I have purchased at the consumer level that does what it says it does and more as long as you hook it up correctly and manage your monitors. I have been through 4 attempted KVM systems and none of them worked or did what they said they would do. It cost me dearly. They only refunded me partially. So It cost time and money loss just trying to find a device that wasn't lying about it's use and capabilities.So get this and keep working on it, it will work for you unless you want 240Hz then you have to spend way more to get a system capable of passing those refresh rates.I'm good.Thanks for reading.

This is the switchbox I was waiting for. The ability to switch between having both computers up on dual monitors, or using both monitors for one computer is amazing.Using the mouse to switch between systems is pretty seamless. However, I found that rather than just pointing to the X to close the window, I kind of fling the cursor up and right and use the edge of the screen to guide the cursor to the right spot. This causes it to switch to the other computer when I don't mean to. The switch is seamless, but switching and then switching back creates the tiniest of delays which is a bit annoying. I changed to use a hotkey to switch and I am completely fine with it.Very good KVM switch. Absolutely the one I was waiting for. Very good price for dual system dual monitor with 4k support.