HP AQ731AA | Essential USB 2.0 Port Replicator with AC Adapter for EliteBook 2540p Laptop PC

Here are the technical specifications for the HP Essential USB 2.0 Port Replicator with AC Adapter for Elitebook 2540p Laptop PC:

- Connectivity Technology: Wired
- Interfaces: 4 x USB 2.0, 1 x VGA, 1 x RJ-45, 1 x audio line-out, 1 x parallel port, 1 x serial port
- Dimensions (WxDxH): 9.1 in x 6.7 in x 1.7 in
- Weight: 2.2 lbs
- Power Device: Power adapter - external
- System Requirements: Microsoft Windows XP Professional SP2 or later, Microsoft Windows Vista Business SP1 or later, Microsoft Windows 7 Professional

Helpful Notes:
1. The HP Essential USB 2.0 Port Replicator is a great solution for expanding your laptop's connectivity options.
2. With four USB 2.0 ports and additional VGA, RJ-45, audio line-out, parallel port, and serial port interfaces, you can easily connect all your peripherals.
3. The compact design makes it easy to take with you on the go, and the included AC adapter ensures that your devices stay powered up.