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External component identification
Maintenance and Service Guide 2–9
Right-side components
Item Component Description
(1) USB ports (2) Connect optional USB devices.
(2) RJ-11 (modem) jack Connects a modem cable.
(3) Optical drive (select models only) Reads optical discs and, on select models, also writes to optical discs.
(4) Optical drive light (select models only) Blinking: The optical drive is being accessed.
(5) Battery light ■ Amber: A battery is charging.
■ Turquoise: A battery is close to full charge capacity.
■ Blinking amber: A battery that is the only available power source has
reached a low battery level. When the battery reaches a critical battery
level, the battery light begins blinking rapidly.
■ Off: If the computer is plugged into an external power source, the light turns
off when all batteries in the computer are fully charged. If the computer is
not plugged into an external power source, the light stays off until the
battery reaches a low battery level.
(6) Power connector Connects an AC adapter.