The USB 2.0 Docking Station Pro allows you to connect your notebook to your desktop peripherals, eliminating the need for constant plugging and unplugging of cables. To use, simply connect your keyboard, mouse, network cable, printer and USB devices to the Docking Station Pro, then plug your notebook into the USB 2.0 upstream port. USB 2.0 Upstream Port for connection to notebook (USB Type B Female); USB Link Port (USB Type B Female); 2 Port USB 2.0 Hub/2 x USB 2.0 Downstream Ports (USB Type A Female); Complies with USB 2.0 specifications, backwards compatible with USB 1.1; PS/2 Keyboard and Mouse Ports (6 Pin Mini DIN Female); Serial Port (9 Way D Male), Bi-directional Printer Port (25 Way D Female); Fast Ethernet Port (RJ45 10/100Mbit/sec); Power supply and USB Type A to Type B Cable included; Compatible with Windows 98SE/ME/2000/XP and Vista; Please note: Serial port and parallel port security dongles are not supported!