DELL - D/Port Advanced Port Replicator for Dell Laptops. Maximize your work space while expanding your desktop with the D/Port. The D/Port provides convenient cable management and alleviates the need to re-connect peripherals each time you return to your desk. One simple connection provides access to 15 expansion ports including: VGA, DVI, S-Video, Parallel, Serial, PS/2 (x2), Headphone, S/PDIF, USB 2.0 (x4), RJ-11, RJ-45 and D/Bay Connector for utilizing external D-Family media modules. Model PR01X. Part number 2U444. Any manuals or driver software needed can be downloaded free from Dell's web site. Model: 2U444, PR01X. Compatible with: Dell Latitude D400 / D500 / D505 / D600 /D800 and Dell Inspiron 500m 600m / 8500 / 8600 Series Notebooks. Compliant Standards IEEE 802.3ab. Data Link Protocol Ethernet. Networking: Ethernet 10/100/1000 Mbps. Port(s)/Connector(s): Required 1 x Docking connector Port(s) Total ( Free ) / Connector Type 1 Serial, 1 Parallel, 4 USB 2.0, 2 PS/2, 1 VGA, 1 DVI, 1 S-Video, 1 RJ-45, 1 RJ-11, Audio Line-out, 1 Digital Audio (S/PDIF), 1 D/Bay connector. Power: 100-240 VAC, 50-60 Hz, Up to 1.5 A. Voltage Required: 100-240 VAC, 50-60 Hz. Does not come with the power supply.