open box, still in bag Does not include power cord. PA-10 or PA-13

no need for a key, The laptop locks into the port replicator in seconds and then you have the convenience of using full size peripherals.

headphones/audio out, USB 2.0 port (4 total), and a power socket on the side, different than the one on the back

• Fully compatible with all Dell Latitude D-series laptops.
• Model number PR01X, also known as a D/Port or D/APR.

Standard I/O connectors for attaching:

• A serial device
• A parallel device
• An external monitor
• A PS/2 mouse
• A PS/2 keyboard or keypad
• 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