HP ProBook 4540s HP ProBook 4540s Notebook PC HP ProBook 4440s Notebook PC HP - Page 24

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Right Component (1) (2) (3) (4) USB 2.0 ports (2) Optical drive (select models only) Optical drive light (select models only) Optical drive eject button (select models only) Description Connect optional USB devices. For more information about USB devices, see the HP Notebook Reference Guide. Reads an optical disc. NOTE: On select models, the optical drive also writes to an optical disc. ● On: The optical drive is being accessed. ● Off: The optical drive is idle. Releases the optical drive disc tray. 16 Chapter 2 External component identification

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Right
Component
Description
(1)
USB 2.0 ports (2)
Connect optional USB devices. For more information about
USB devices, see the
HP Notebook Reference Guide
.
(2)
Optical drive (select models only)
Reads an optical disc.
NOTE:
On select models, the optical drive also writes to
an optical disc.
(3)
Optical drive light (select models only)
●
On: The optical drive is being accessed.
●
Off: The optical drive is idle.
(4)
Optical drive eject button (select models
only)
Releases the optical drive disc tray.
16
Chapter 2
External component identification