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Left-side view
1 ac power connector
3 Always On USB connector
2 Fan louvers 4 Wireless radio switch
1 ac power connector
Connect the ac power adapter to the ac power connector to provide ac power to the computer and charge
the battery.
2 Fan louvers
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.
3 Always On USB connector
By default, the Always On USB connector enables you to charge some mobile digital devices and
smartphones when your computer is in sleep or hibernation mode.
If you want to charge these devices when your computer is turned off, do the following:
1. Connect the computer to an ac power supply.
2. Go to ThinkPad Setup and enable Always On USB Charge in off mode. For more information, see
“Cong menu” on page 70.
3. Do one of the following:
• For Windows 7: Start the Power Manager program and click the Global Power Settings tab. Then
select the Enable Always On USB check box.
• For Windows 8: Press the Windows key to go to the Start screen. Click Lenovo Settings ➙ Power.
Then select the Enable when the computer is off check box.
4 Wireless radio switch
Use this switch to quickly turn on or turn off all wireless connections.
Chapter 1. Product overview 5