I have three of these, the inputs from a Thinkpad (Manjaro), a CalDigit Dock for MacBook (BigSur) and two desktops (Windows and Ubuntu) to three monitors (two Dell U2717D and one Dell U2721DE). DP cables are available in a variety of lengths from 3 to 10 feet, all DP1.4Is will switch between any combination of all four computers/three monitors all day long and the switch is always on. However, I don't use the USB switch function, I use the devices purely as a display port switch. USB remotes work as advertised.
TESmart 1080P 60Hz USB VGA KVM Extender Over Cat5e Cat6 Ethernet Cable - Long Range 984ft/300m (Sender+Receiver)
10 Review
Enhance Productivity with CKL HDMI KVM 2 Port 4K 30Hz Dual Monitor Extended Display (CKL-922HUA)
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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
CKL Quad Monitor HDMI KVM Switch 4 Port 4K@30Hz with Cables - Extended and Mirrored Display Support for Windows, Linux, and Mac
11 Review
Fractal Design Define R5 - ATX Mid Tower Computer Case - High Airflow and Silent Optimized - Includes 2x Dynamix GP-14 140mm Silent Fans - Water-Cooling Ready - Black
43 Review
Zalman Z3 M ATX π» Tower Computer: A Compact and Powerful Machine
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Computer case AeroCool Cylon black
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Computer case be quiet! Pure Base 500 black
32 Review