ATEN 4-Port PS/2-USB VGA KVM Switch. The PS/2-USB CS84U KVM switch is a desktop device that provides users with access to four computers from one KVM console (PS/2 keyboard and mouse or USB and VGA monitor). The CS84U supports the new ATEN – Video DynaSync™ technology, which allows you to bypass problems with the display when loading and optimizes the screen resolution. The switch does not require configuration – just insert the cables into the appropriate ports. The CS82U works with many computing platforms. 4-port PS/2-USB KVM Switch CS84-U, 4 x Custom sets of KVM cables.To connect console devices: Keyboards: 1 x USB Type A, Socket (Black), 1 x 6-pin Mini-DIN, Socket (red); Monitor: 1 x HDB-15, Socket (blue); Mice: 1 x USB, Type A Socket (Black), 1 x 6-pin Mini-DIN, Socket (Green); KVM ports: 2 x SPHD-18, socket (Yellow); Power supply: 1 x DC, Plug.