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Note: For the ThinkPad Mini Dock Plus Series 3 (170 W) and ThinkPad Mini Dock Plus Series 3 with USB
3.0 (170 W), use the ac power adapter shipped with your computer.
8 eSATA connector or USB 3.0 connector: For the ThinkPad Mini Dock Plus Series 3, this is an eSATA
connector for connecting an eSATA device. For the ThinkPad Mini Dock Plus Series 3 with USB 3.0, this is a
USB 3.0 connector for connecting a USB compatible device.
9 External monitor connector: Connect an external monitor.
10 Security keyhole: Use a security cable lock that ts this keyhole to lock your port replicator to a
stationary object to protect it from theft.
Note: If you attach your computer to a port replicator or docking station and use an Ethernet connector or
an external monitor connector, use the Ethernet connector or the external monitor connector on the port
replicator or docking station, not the one on the computer.
Attaching a ThinkPad port replicator or docking station
To attach your computer to a supported ThinkPad port replicator or docking station, do the following:
Notes:
• Before you attach the computer to a supported ThinkPad port replicator or docking station, disconnect
the ac power adapter from the computer.
• If your computer is operating, make sure that it has nished any operations involving devices that are
connected to a USB connector. Also make sure that any connection to an Ethernet connector has
been disconnected.
• The following illustrations are for the ThinkPad Mini Dock Series 3. The procedure is the same for other
docking stations. For port replicators, start with step 2.
1. Make sure that the system lock key is in place and in the unlocked (horizontal) position.
2. Attach the Series 3 Dock Adapter to the docking station.
84 User Guide