Aten 16 Port Rackmount USB-PS/2 VGA KVMP Switch with USB 2.0 Hub and Daisy ChainAten CS 1716A 16 Port PS 2 USB KVM Switch The CS1716A KVM switch is a control unit that allows access to multiple computers from a single PS 2 or USB console (keyboard, mouse, and monitor). A single CS1716A can control up to 16 computers. As many as 31 additional switches can be daisy chained to each other, so that up to 512 computers can all be controlled from a single keyboard monitor mouse console. Additionally, a front panel USB port is available