HP ProBook 4321s Notebook-PC - Manual (Page 22)

Component Description
(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 high-performance eSATA
components, such as an eSATA external hard drive.
(9) USB port Connects 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.
(2) 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.
(3) External monitor port Connects an external VGA monitor or projector.
(4) RJ-45 (network) jack Connects a network cable.
(5) HDMI port Connects an optional HDMI device.
(6) Combo eSATA/USB port Connects an optional USB device or high-performance eSATA
components, such as an eSATA external hard drive.
(7) USB port Connects optional USB device.
(8) ExpressCard slot Supports optional ExpressCards.
10 Chapter 1 Features