8chapter 1 features – HP ProBook 4720s Notebook-PC User Manual
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Component
Description
(1)
Security cable slot
Attaches an optional security cable to the computer.
NOTE:
The security cable is designed to act as a deterrent, but
it may not prevent the computer from being mishandled or stolen.
(2)
Power connector
Connects an AC adapter.
(3)
AC adapter light
●
On: The computer is connected to external power and the
battery is charging.
●
Off:
◦
The computer is not connected to external power.
◦
The computer is connected to external power, but the
battery is fully charged.
(4)
Vent
Enables airflow to cool internal components.
NOTE:
The computer fan starts up automatically to cool internal
components and prevent overheating. It is normal for the internal
fan to cycle on and off during routine operation.
(5)
External monitor port
Connects an external VGA monitor or projector.
(6)
RJ-45 (network) jack
Connects a network cable.
(7)
HDMI port
Connects an optional HDMI device.
(8)
Combo eSATA/USB port
Connects an optional USB device or an optional high-performance
eSATA component, such as an eSATA external hard drive.
(9)
USB port
Connects an optional USB device.
(10)
ExpressCard slot
Supports optional ExpressCards.
Component
Description
(1)
Security cable slot
Attaches an optional security cable to the computer.
NOTE:
The security cable is designed to act as a deterrent, but
it may not prevent the computer from being mishandled or stolen.
8
Chapter 1 Features