Dell Vostro 3350 (Early 2011) - Manual (Page 6)

Figure 6. Vostro 3550/3555 — Back View
1. security cable slot
2. network connector
3. USB 3.0 connector
4. battery
5. VGA connector
6. AC adapter connector
7. USB 2.0 connector (Vostro 3550) /
USB 3.0 connector (Vostro 3555)
8. cooling vents
9. HDMI connector
10. e-SATA connector
11. 8-in-1 memory card reader
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.
6