Lenovo E420, E520 Left-side view, Optical drive, Power jack, Security keyhole, Fan louvers left

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 fit 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.

	Fan louvers (left)		Monitor connector
1		2
	USB connectors		eSATA/USB combo connector
3		4
	HDMI port		Combo audio jack
5		6
	Media card reader slot
7

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 airflow, 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