KVM switches make it easy to switch keyboards, monitors, mice, and other peripherals from one computer to another. Illustration: Wirecutter A KVM (keyboard, video, and mouse) switch allows you to ...

For about $50 you can buy a device called a KVM switch that links two computers; and for $100 a KVM switch can connect up to four. KVM stands for keyboard, video, mouse. Here’s how the switch works: ...