2–8 Maintenance and Service Guide
External component identification

Right-side components

Item Component Function
1 Optical drive Reads optical discs and, on select models, also writes to optical discs.
2 Optical drive light Blinking: The optical drive is being accessed.
3 USB ports (2) Connect optional USB devices.
4 RJ-11 (modem) jack (select models only) Connects a modem cable.
5Security 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.