A unique docking station for a unique notebook. This convenient, easy to use docking system offers port replication and simplified cable management in a space-saving design.- Return to your familiar desktop environment or leave the office in an instant with one-handed, one-touch docking and undocking operation- Full port replication with 4 USB 2.0 ports (1 power USB), e-SATA port, Ethernet pass through, Display Port, VGA plus security lock options. This docking station is compatible with the HP Adjustable Notebook Stand and HP Monitor Stand- Compatible only with the HP EliteBook 2540p