Lenovo ThinkPad i Series 1157 ThinkPad 570 User's Reference - Page 172

Using locks Using locks You can attach a mechanical lock to your computer, to help prevent it from being removed without your permission. Attach a mechanical lock to the keyhole of the computer; then secure the chain on the lock to a stationary object. Refer to the instructions shipped with the mechanical lock. For information on the keyhole location page 4. You are responsible for evaluating, selecting, and implementing the locking devices and security features. IBM makes no comments, judgments, or warranties about the function, quality, or performance of locking devices and security features. If you attach an option, such as ThinkPad 570 UltraBase or port replicator, to your computer "Extending the features of your computer with the ThinkPad 570 UltraBase and port replicators" on page 84. 156 IBM ThinkPad 570 User's Reference