2 Optical drive
Your computer has a slot for an optical drive.
3 Power jack
The ac power adapter cable connects to the computer power jack to provide power to the computer and
charge the battery.
4 Security keyhole
Your computer comes with a security keyhole. You can purchase a security cable and lock to t this keyhole.
Left-side view
Figure 4. ThinkPad Edge E420 and E520 left-side view
Note: Your computer keyboard might look different from the illustration above.
1 Fan louvers (left)
2 Monitor connector
3 USB connectors 4 eSATA/USB combo connector
5 HDMI port
6 Combo audio jack
7 Media card reader slot
1 Fan louvers (left)
The internal fan and louvers enable air to circulate in the computer and cool the central processor.
Note: To avoid impeding airow, do not place any obstacle in front of the fan.
2 Monitor connector
You can attach an external monitor or a projector to your computer to display computer information.
Chapter 1. Product Overview 7