What is KVM switch stand for? It is being abbreviation for keyboard, video or visual display unit, mouse – it is a hardware device that allows a user to control multiple computers from a single keyboard, video monitor and mouse.  Although multiple computers are being connected, typically a smaller number of computers can be controlled at any given time.  Modern devices have also added the ability to share USB devices and speakers with multiple numbers of computers.  Some can also function in reverse – that is, a single PC can be connected to multiple monitors, keyboards and mice. While not as common as the former, this configuration is useful when the operator wants to access a single computer from two or more locations.

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