Aten USB Boundless 4-Port KM Switch

Single USB keyboard and mouse control up to 4 computers
Daisy-chain two CS724KM units to control up to 8 computers with a single keyboard and mouse
Boundless Switching simply move the mouse cursor across the display border and onto the corresponding display of the target computer to switch the keyboard/mouse operations from one computer to the next.
Boundless Switching Configuration Utility* an intuitive GUI tool that enables users to customize monitor layouts