Features: Excellent picture quality, resolution up to 1920 x1440, bandwidth: 250MHz No software control, you can select the host computer to be operated by the button Support for hot-swappable, do not need to turn off the switch and the computer can plug in or unplug the connected computer Support smart mouse and so on There is automatic monitoring function for monitoring the host running100% brand new and high quality4-port manual switch with mini pocket design with 7 USB port, light and easy to use.switches are typically used by one or more administrators to manage multiple computers or an environment where users must operate two or more computers, including network operations centers, information centers, server rooms, software development, Test labs, service centers, departmental LANs, and desktops install multiple computers simultaneously. Package Includes: 1 x Switcher Specifications: Item: 4-Port Manual SwitcherSize: approx 10x7.5x2.3cm/3.93x2.95x0.90inResolution up to: 1920 x1440 Bandwidth: 250MHz Material: ABSSupport : SVGA, VGA, and Multi-sync Monitors Computer Port: 4Console Port: 3USB Port: 7Computers Supported: 4Keyboard Emulation: USBMouse Emulation: USB Keyboard Input / Output: USBMouse Input / Output: USBInput / Output: High Density D-Sub 15 pinLED indicators: 4Support DOS, Win3.X Win95 / 98 / 98SE / 2000 / ME / XP, WinNT, Netware, Unix, LinuxConnection: connect of computer A to PC1, of computer B to PC2connect USB mouse/keyboard/printer to the 3 USB console portsconnect USB cable from computer A to USB1, USB cable from computer B to USB2 note: This product does not bring their own power cord, you need to purchase the power of the line need to be purchased separately, (a host needs to connect a power cord, then two hosts need to connect two power lines and so on) Power port USB male (B type) that is common printer data cablePlease allow 0-1cm error due to the manual measurment.