ATEN CubiQ KVM Switch - 4 Computer(s) - QXGA - 2048 x 1536 - 2 x PS/2 Port - 2 x USB1 x VGA - CS84U

One PS/2-USB VGA console controls four VGA interface computers.
Dual Interface - supports computers with PS/2 or USB keyboards and mice
Computer selection via front panel pushbuttons, hotkeys, and mouse
Multiplatform support - Windows, Linux, Mac, and Sun
Superior video quality - 2048 x 1536; DDC2B
Video DynaSync™ - Exclusive ATEN technology eliminates bootup display problems and optimizes resolution when switching between ports
Console mouse port emulation/bypass feature supports most mouse drivers and multifunction mice
Complete keyboard emulation for error-free booting
Mac/Sun keyboard support and emulation
Multilingual keyboard mapping - supports English, Japanese, and French keyboards