HP ProBook 640 G1, 645 G1, 650 G1, and 655 G1 Notebook PCs - Maintenance and Service Guide

Table Of Contents
Component Description
(2) RJ-45 (network) jack/lights (2) Connects a network cable.
Amber (left): The network is showing activity.
Green (right): The network is connected.
(3) USB 3.0 charging port Connects optional USB 3.0 devices and provides enhanced USB
power performance. The USB charging port can also charge
select models of cell phones and MP3 players, even when the
computer is off.
(4) Memory card reader Reads data from and writes data to memory cards such as
Secure Digital (SD).
(5) USB 3.0 ports (2) Connect optional USB 3.0 devices and provide enhanced USB
power performance.
(6) Upgrade bay (optical drive shown) The upgrade bay can hold either a hard drive or an optical drive
that reads and writes (select models only) to an optical disc. It
can also hold a weight saver option.
(7) Optical drive eject button (select models only) Releases the optical drive disc tray.
(8) ExpressCard slot or smart card reader
(depending on the configuration)
Supports optional ExpressCards or smart cards.
20 Chapter 2 External component identification