Kensington MicroSaver Lock - Graphite - Apple Store (U.S.)

MicroSaver uses a unique security slot already built into the MacBook Pro, MacBook, flat-panel iMac, Titanium PowerBook G4, G3, iBook computers and Apple Cinema Displays. Simply wrap the 6 foot galvanized steel cable around any immovable object, then insert the MicroSaver into the security slot and turn the key. That's it - simple and secure.