It can extend the power switch of the computer,keyboard,mouse and video port max of 5-50m It provides a KVM port on the Sender It can be switched from remote monitor to local monitor or switched from local monitor to remote monitor by the keystroke on the Sender or SCROLL on the local keyboard Use the single cable (CAT5,CAT5E,CAT6),the cost is inexpensive It supports (PS/2 port) keyboard and mouse, it supports (VGA) port monitor It can remove and insert the local and remote keyboard and mouse Power on computer use the emulational keyboard and mouse It supports DOS, Windows, Unix, Linux system It does not need a driver, it is simple to install The remote keyboard and mouse display is in real-time Index of anti-lightning and anti-invasion:withstand air-discharge 15KV, contiguity-discharge 8KV 110 x 110 x 30 (mm), 0.55kg