Features:  It can extend the power switch of the computer,keyboard,mouse and video port max of 100-200-300m  It can be switched from remote monitor to local monitor or switched from local 3.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 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, Linux,Unix system It does not need a driver, it is simple to install The remote keyboard and mouse display is in real-time The anti-jamming is strong The anti-lightning and anti-invasion is strong Cascade operation for increasing the distance Index of anti-lightning and anti-invasion:withstand air-discharge 15KV, contiguity-discharge 8KV Specification: input connector: 1-ch VGA+ 1-ch usb output connector: VGA, 2-USB local output: HD15PIN（VGA） bandwidth: 100M 200M 300M input level range: 0.5-2.0Vp-p input level error: less than 3mV input impedance: 75Ω output impedance: 75Ω echo ullage: -30dB@5MHz Max DC compensation: ±5mV-0 SNR: 60dB Connector standard: HDB15，USB,Mini-DIN6,RJ45 Video standard: VGA，SVGA，XGA，SXGA，UXGA，LCD Cable standard: CAT5，CAT5E，CAT6 UTP Power adapter: DC12V/1A operational temperature: -25℃~+70℃ deposited temperature： -40℃~+80℃ relative humidity: 0~95%（non-condensing） MTBF: >30000 hours Packing List: *  KVM extender transmitter receiver *  12V/1A power adapter *  USB cable *  the manual *  factory maintenance card