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9. microphone
10. volume control buttons
11. optical-drive eject button
12. optical drive
13. USB 2.0 connector
14. headphone connector
15. fingerprint reader (optional)
16. touchpad
17. touchpad buttons (2)
18. wireless switch
19. power and battery status indicators
20. trackstick buttons (3)
21. trackstick (optional)
22. keyboard
23. device status lights
Figure 2. Back View
1. network connector
2. USB 2.0 connector
3. modem connector (optional)
4. power connector
5. security cable slot
6. cooling vent
7. IEEE 1394 connector
8. HDMI connector
9. e-SATA/USB 2.0 connector
10. USB 2.0 connector
11. Secure Digital (SD) card slot
12. ExpressCard slot
WARNING: Do not block, push objects into, or allow dust to accumulate in the air
vents. Do not store your Dell computer in a low-airflow environment, such as a
closed briefcase, while it is running. Restricting the airflow can damage the
computer or cause a fire. The computer turns on the fan when the computer gets
hot. Fan noise is normal and does not indicate a problem with the fan or the
computer.
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