StarTech.com StarView SV411K - 4-port

This 4 Port KVM Switch Kit lets you control four computers using a single keyboard, mouse and VGA monitor and offers both hotkey and top panel push-button operation for simple switching between connected computers.
Designed to integrate seamlessly into any environment, the KVM switch offers a small footprint design (roughly the size of a deck of playing cards) and draws power from the connected computers, so it doesn't require an external power supply.
A suitable solution for virtually any application, the KVM switch supports video resolutions of up to 2048 x 1536 and includes 3-in-1 (PS/2 and Video) cables to provide a complete, out-of-the-box KVM solution.