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Docking station connector: This is where you attach your computer.

Power jack: Connect the ac power adapter.

Ethernet connector: Connect the ThinkPad UltraBase Series 3 to an Ethernet LAN.

DisplayPort connector: Connect a display device.

Monitor connector: Connect an external monitor or projector.

Headphone jack: 1/8 inch (3.5 mm) in diameter. Use it to connect an external headphone.

Microphone jack: 1/8 inch (3.5 mm) in diameter. Use it to connect an external microphone.

USB 2.0 connectors: Connect USB 2.0 compatible devices.

9Security keyhole: Use a security cable lock that fits this keyhole to lock your ThinkPad UltraBase Series 3 to a stationary object to protect it from theft.

10System lock key: Use the system lock key to lock the eject button. When the eject button is locked, you cannot attach or remove your computer.

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Drive bay: Install an optical drive (DVD-ROM drive) or a second hard disk drive .

Chapter 7. Enhancing your computer 91

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Lenovo X230I manual Top view