A KVM Switch (Keyboard, Video, Mouse Switch) is a device that allows a user to control multiple computers from a single keyboard, monitor, and mouse setup. This is particularly useful in environments where space is limited or when managing several servers or workstations simultaneously. By switching between computers, users can save time and reduce clutter. KVM switches come in various forms, including hardware devices and software solutions. They can support different types of connections, such as USB and HDMI, and may offer features like hotkey switching or remote access. This versatility makes them popular in both home and professional settings.