HP ProBook Notebook PC User Guide - Linux

To connect an external device to the computer:
CAUTION: To reduce the risk of damage to the equipment when connecting a powered device, be
sure that the device is turned off and the AC power cord is unplugged.
1. Connect the device to the computer.
2. If you are connecting a powered device, plug the device power cord into a grounded AC outlet.
3. Turn on the device.
To disconnect an unpowered external device, turn off the device, and then disconnect it from the
computer. To disconnect a powered external device, turn off the device, disconnect it from the computer,
and then unplug the AC power cord.
60 Chapter 6 External devices