Lenovo ThinkPad X121e User Manual page 21

2 USB connector
The Universal Serial Bus (USB) connector is used for connecting USB-interface-compatible devices, such
as a printer or digital camera.
3 Always On USB connector
The Always On USB connector is used for connecting devices compatible with a USB interface, such as
a printer or a digital camera.
By default, even if your computer is in sleep (standby) mode, the Always On USB connector still enables
you to charge some devices, such as iPod
devices to the connector.
However, with the ac power adapter attached, if you want to charge these devices when your computer
is in hibernation mode or powered off, you will need to open the Power Manager program and configure
corresponding settings to enable the Always On USB connector. For details about how to enable the Always
On USB connector, refer to the on-line help of the Power Manager program.
Notes:
• Your computer may look slightly different from the illustrations.
• Your computer is compatible with USB 1.1 and 2.0.
4 Power jack
The ac power adapter cable connects to the computer power jack to provide power to the computer and
charge the battery.
An indicator to the left of the connector shows the status of ac power. When the ac power adapter is
connected, the indicator is on. If a battery is installed in the computer, the indicator is green when the
battery charges.
5 Security keyhole
Your computer comes with a security keyhole. You can purchase a security cable and lock to fit this keyhole.
® ®
, iPhone , and BlackBerry
®
smartphones, by attaching the
.
Chapter 1 Product Overview
5