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Security cable slot
Attaches an optional security cable to the computer.
The security cable is designed to act as a
deterrent, but it may not prevent the computer from being
mishandled or stolen.
USB 3.0 ports (2)
Connects optional USB devices.
Connects an optional IEEE 1394 or 1394a device, such as
Enable airflow to cool internal components.
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
RJ-45 (network) jack
Connects a network cable.
Connects an optional digital display device, such as a high-
performance monitor or projector.
eSATA/USB 2.0 combo port
Connects a high-performance eSATA component, such as
an eSATA external hard drive, or connects an optional USB
Supports optional ExpressCards.
Chapter 2 External component identification