Dell Latitude E5540 - Base View; Back View

21. trackstick buttons (3) (optional)
22. trackstick (optional)
23. keyboard
24. mute button
25. volume-down button
26. volume-up button
Figure 2. Back View
1. network connector
2. USB 2.0 connector
3. power connector
4. wireless switch
5. cooling vents
6. HDMI connector
7. USB 3.0 connector
8. SD card slot
9. ExpressCard or Smart Card slot (optional)
Figure 3. Base View
1.
battery latch
2. battery bay
3. docking connector
4. SIM card slot (optional)
5. battery latch
2