KVM switches allow you to control multiple computers from one workstation. These switches are valuable when you have several servers you need to maintain from one location. The mouse, keyboard and rackmount monitor are connected to the switch, and you then connect the switch to your servers. The result is one set of peripherals for several computers. This means instead of buying a set of peripherals for several servers, you buy one KVM switch and connect it to up to 24 different servers.