Tripp Lite B022-004-R 4-Port Desktop KVM Switch, PS/2, USB 

• Control up to four computers from one keyboard, monitor and mouse.
• USB plug-and-play setup.
• LED display.
• Video quality up to 2048 x 1536.

Increase office versatility and control up to four computers from one keyboard, mouse and monitor. USB plug-and-play connectivity provides simple setup. Compatible with all major operating systems, most keyboards and mice. Bright LED display for monitoring connections and status. Superior video quality up to 2048 x 1536 dpi resolution.

Includes one 4-port KVM switch, PS/2 console cable kit and owners manual.