A: A KVM is different from an HDMI switch by adding the keyboard and mouse functionality. HDMI switches are very inexpensive because they are very limited in functionality. If a computer is one of the many inputs that need to be managed, a KVM will be the preferred device.

A: A KVM (keyboard, video, mouse) switch is a hardware device that allows a user to control multiple computers from a single keyboard, video monitor, and mouse. Previously KVM's were mostly seen in data centers but in recent years have expanded to the consumer market due to the number of video devices that many homeowners use (computers, streaming devices, game consoles, security systems, etc.)