15. wireless switch
16. device status indicators
17. touchpad buttons
18. touchpad
19. trackstick buttons (optional)
20. trackstick (optional)
21. keyboard
22. device status lights
23. volume control buttons
Figure 4. Back View
1. network connector
2. USB 2.0 connector
3. modem connector (optional)
4. power connector
5. security cable slot
6. cooling vents
7. HDMI connector
8. eSATA/USB 3.0 connector
9. USB 3.0 connector
10. Secure Digital (SD) card slot
11. ExpressCard slot (optional)
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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