Bottom View - Lenovo ThinkPad Edge E420s User Manual

• MultiMediaCard
Note: Your computer does not support the CPRM feature for SD card.
For details, refer to the instructions in "Using the media card reader" on page 49.

Bottom view

Figure 4. ThinkPad Edge E420s bottom view
1
Fan
3
Optical drive
5
Battery
1 Fan
The internal fan and louvers enable air to circulate in the computer and cool the central processor.
Note: To avoid impeding airflow, do not place any obstacle in front of the fan.
2 SIM card slot
If your computer has a wireless WAN feature, it may require a SIM (Subscriber Identification Module) card to
establish a wireless WAN (Wide Area Network) connections. Depending on the country of delivery, the SIM
card may be already installed in the SIM card slot.
3 Optical drive
Your computer has an optical drive.
2
SIM card slot
4
Emergency reset hole
6
Hard disk drive (HDD) or solid state drive
.
Chapter 1 Product Overview
7