Dell Docking Station Latitude D400 D500 D600 D800 Pro X1 2U444 Dell Latitude D400 Docking Station saves you from the need to unplug and re-plug peripherals each time you take away your laptop or return to your desk. Port replicator is a stationary device located on your desk. You can connect it to a mouse, keyboard, monitor, printer and other devices. After that you won’t have to connect or disconnect these devices. Just connect the laptop to the port replicator and you're ready to go. Port replicator significantly improves your mobility since you receive instant access to 15 different extension ports. Designed for the latest Inspirons and D-series Latitude notbooks, including the Inspiron 500m/600m, 8500/8600, and Latitude D400/D500/D600/D800, and also for Precision M60. The laptop locks into the port replicator in seconds and then you have the convenience of using full size peripherals. Compatible With The Following Dell Notebooks : Dell Inpsiron : 500M, 600m, 8500, 8600 Dell Latitude : D400, D500, D600, D800 Features: Fully compatible with all Dell Latitude D-series laptops. One serial and one parallel port RGB monitor port PS/2 mouse port PS/2 keyboard or keypad port 4 USB 2.0 connectors (three on back and one on the left side). One RJ45 network connector for attaching to Ethernet network. One headphones/speakers/audio out jack S/PDIF phono jack DVI port Dell Part Numbers : Model number PR01X, also known as a D/Port or D/APR. Dell Part number: 2U444