... a transmitter and a receiver, which can extend VGA and PS2 interfaces of computer max up to 600meters over single cat5 ... , support plug and play.*Max resolution support 1920*1440.*Support PS2 keyboard and mouse*Support DOS, Windows, NT, Linux*Provide a ... .5V 1AAnti-lightning Index: air-discharge 15KV, contiguity-discharge 8KV. PS2 KVM extender 1~300m