The D-Link DKVM-4 is a 4-Port keyboard, Video, and Mouse switch. It enables you to control four different PCs using one keyboard, monitor, and mouse. It provides many easy to use features and is perfect for home and small businesses. The DKVM-4 utilizes advanced microprocessor emulation to intelligently manage each KVM port. This allows simultaneous boot-up of all attached PCs. Autoscan, audible feedback, and keyboard "Hot Keys" make the DKVM-4 simple to use and manage. There is also a control button located on the front panel that allows you to switch between each PC.