Overall a KVM switch is very handy as I can use two PCs with the same monitor that only has a display port input and switch between active mouse and keyboard . simultaneously. However, this KVM switch switches from input 2 to input 1 on its own several times a day, which interrupts my work and causes all my windows to resize and switch to a different monitor. Nothing touching or near the switch when it does. What's even more annoying is that Outlook doesn't handle this resolution switch at all and completely destroys the inbox view, requiring a lot of manual effort to revert to the original view. You can avoid the resolution switching problems that others have complained about by locking the PC. before switching (Win+L), but that doesn't help if he decides to switch inputs himself.
CKL Quad Monitor HDMI KVM Switch 4 Port 4K@30Hz with Cables - Extended and Mirrored Display Support for Windows, Linux, and Mac
11 Review
π TRENDnet TK-803R: 8-Port Rack Mount KVM Switch with VGA & USB Connection, USB/PS2 Support, Device Monitoring, Auto Scan - Control 8 Computers/Servers
10 Review
π HDMI 2.0 4 Port KVM Switch with 4K@60Hz, 2K@144Hz,1080P@120Hz Support, 18Gbps Bandwidth, USB 2.0 Keyboard/Mouse/Printer/Monitor/PC Selector, Audio Out/Mic In, HDR10, Dolby Vision, Dolby/DTS, HDCP2.2 Compatibility
10 Review
4 Port USB 3.0 Switch Selector - Pubioh KVM Switch for Mouse, Keyboard, Printer, Scanner - 2 in 4 Out Sharing Box with Switch Button and 2 USB 3.0 A to A Cables
11 Review