Dell Vostro 3550 (Early 2011) - Manual (Page 4)

Figure 4. Vostro 3450 — Back View
1. network connector
2. USB 3.0 connector
3. battery
4. security cable slot
5. AC adapter connector
6. VGA connector
7. cooling vents 8. HDMI connector
9. e-SATA connector
10. USB 2.0 connector
11. 8-in-1 memory card reader
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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