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Left side view - ThinkPad T520, T520i, W520

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Left side view

left side view Fan louvers (left) DisplayPort connector Monitor connector USB connectors (left) USB/eSATA combo connector IEEE 1394 connector Wireless radio switch Smart card slot

 
Index Item Description
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 DisplayPort connector Your computer supports the DisplayPort, a next-generation digital display interface that connects a compatible projector, external monitor, or HDTV to your computer.
3 Monitor connector You can attach an external monitor or a projector to your computer to display computer information.

Note: If you attach your computer to the ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3, or ThinkPad Mini Dock Plus Series 3 (170 W) and use a monitor connector, use the monitor connector on the ThinkPad Port Replicator Series 3, ThinkPad Mini Dock Series 3, ThinkPad Mini Dock Plus Series 3, or ThinkPad Mini Dock Plus Series 3 (170 W), not the one on the computer.
4 USB connector (left) The Universal Serial Bus connectors are used for connecting devices compatible with a USB interface, such as a printer or a digital camera.

Note:
  • Your computer may look slightly different from the illustrations.
  • Your computer is compatible with USB 1.1 and 2.0. Some models are also compatible with USB 3.0.
  • If your computer is a USB 3.0 model, any function specific to USB 3.0 will not work until your Windows operating system has been started. However, USB 2.0 or 1.0 devices will work.
5 USB/eSATA combo connector The Universal Serial Bus connectors are used for connecting devices compatible with a USB interface, such as a printer or a digital camera.

Note: Your computer is compatible with USB 1.1 and 2.0.

When you attach a USB cable to the connector, make sure that the mark is to the upper side. Otherwise the connector might be damaged.

You can also connect an external SATA device, such as an external hard disk drive, to this connector on some models.

Note: To avoid damaging the connector, be careful when you attach a cable from the external SATA device to the connector.
6 IEEE 1394 connector Your computer has an IEEE 1394 connector, which is used for connecting devices that are compatible with the IEEE 1394 interface, such as digital video cameras and external hard disk drives.
7 Wireless radio switch You can quickly turn the wireless features of your computer on and off using this switch.
8 Smart card slot Your computer has a smart card slot.