Use one mouse, keyboard, and monitor to control four computers with the CS84U 4-Port PS/2 USB KVM Switch from Aten. This KVM switch comes equipped with four SPHD-18 KVM ports that connect to your computers using the included sets of KVM cables. The switch’s console ports include a VGA connector for a monitor, and you can choose between either PS/2 or USB Type-A ports for your mouse and keyboard.
To cycle between computers, you can press the front-panel buttons, double-click the mouse button on a compatible mouse, or use a hotkey. The plug-and-play and firmware-upgradable CS84U supports Windows, Mac, Linux, and Sun PCs, as well as video resolutions up to 2048 x 1536. No software or drivers are required to use the switch.