Lenovo ThinkPad i Series 1157 ThinkPad 570 User's Reference - Page 135

Extending features: UltraBase and ThinkPad 560 Port Replicator Security features when using the ThinkPad 560 Port Replicator If you are using the ThinkPad 560 Port Replicator through the UltraBase, you achieve the same security features when attaching the mechanical lock to the security keyhole of the port replicator. With the mechanical lock, you can secure your port replicator and the UltraBase. Attach the mechanical lock to the security hole of the ThinkPad 560 Port Replicator. For more information the manual shipped with the port replicator. You need to purchase the mechanical lock on the market. You are responsible for evaluating, selecting, and implementing the locking devices and security features. After setting the UltraBase lock to the either lock position, insert the security plate in the security keyhole of the UltraBase as follows: Chapter 2. Using your computer and extending its features 119