Aten CS-1734B - 4-Port USB 2.0 KVMP Switch with OSD The CS1734B is 4-port KVM switch combined with a 2-port USB 2.0 hub. As a KVM switch, it allows users to access four computers from a single keyboard, monitor, and mouse console. There are three methods to obtain instant access to any computer in your installation: Manual, Hotkey, OSD, and mouse.