Purchase a security cable lock that fits this keyhole to lock your computer to a stationary object to protect your computer from theft.
USB 2.0 connector
The USB 2.0 connector is used for connecting devices compatible with a USB interface, such as a USB printer or a digital camera.
Note: When you attach a USB cable to the connector, make sure that the USB mark is facing upward. Otherwise the connector might be damaged.
Wireless radio switch
Use this switch to quickly turn on or turn off all wireless connections.
Your computer has an ExpressCard slot for a 34 mm-wide ExpressCard.
Media card reader slot
Depending on the model, your computer might have a media card reader slot.
Serial Ultrabay enhanced bay
Your computer has a bay for Serial Ultrabay Enhanced devices. Some models have an optical disk drive installed in the bay. For certain models, a 9.5 mm hard disk drive is installed through the ThinkPad 12.7 mm Serial Hard Drive Bay Adapter III.