TESmart KVM Switch 4 Computers 1 Monitor, 4 Port HDMI KVM, UHD 4K@60Hz RGB 4:4:4, USB 2.0 Hub, Stereo Audio, Hotkey, Button Switching, Keyboard Mouse Monitor Switcher Box for PC Mac with 5ft Cables
Amazon.com: Tripp Lite Minicom PS2 to USB Converter for KVM Switch and Extender, Pure Hardware Solution, TAA GSA Compliant, 3-Year Warranty (0DT60002) : Electronics
Amazon.com: USB 3.0 KVM Switch HDMI 4 Computer 1 Monitor 4K 60Hz SPDIF L/R Hotkey - Share one Set of Keyboard Mouse Printer,1080p 120Hz 144Hz HDCP Bypass,4X USB3.0 Cable,IR Remote Ext. Windows
TRENDnet 8-Port USB/PS2 Rack Mount KVM Switch, TK-803R, VGA & USB Connection, Supports USB & PS/2 Connections, Device Monitoring, Auto Scan, Audible Feedback, Control up to 8 Computers/Servers