Left-side components
Item Component Function
(1)
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.
(2)
USB ports (2) Connect USB 1.1- and 2.0-compliant devices to the computer
using a standard USB cable, or connect an optional External
MultiBay II to the computer. The MultiBay II must also be connected
to an external power source.
(3)
1394 port (select models only) Connects an optional IEEE 1394 or 1394a device, such as a
camcorder.
(4)
Audio-in (microphone) jack Connects an optional computer headset microphone, stereo array
microphone, or monaural microphone.
(5)
Audio-out (headphone) jack Produces computer sound when connected to optional power
stereo speakers, headphones, ear buds, a headset, or television
audio.
(6)
PC Card slot Supports optional Type I or Type II 32-bit (CardBus) or 16-bit PC
Cards.
12 Chapter 2 External component identification