The KVM Switch is used to control 4 VGA, USB-equipped PCs using a single peripheral. It reduces switching lag-time and improves overall compatibility with connected display and input devices, saving time and money. The KVM offers All-time Display Data Channel (Full DDC) technology to maintain proper display detection among connected systems, a simple one-touch button for hot-key selection and an integrated 4-port USB hub allowing you to share additional peripherals.