HP OmniBook XE2-DE Notebook PC - Manual (Page 6)

4 HP Port Replicator
2. Position the computer on the port replicator and press down on the
computer.
The docking light turns on when you have a good connection.
To undock the Notebook PC
1. Close any applications that are using devices connected through the port
replicator.
2. Press release tabs on each side of the port replicator and gently lift the
computer up.