Get hardware security for your notebook and another device like a display or dock with the HP dual head keyed cable lock, which locks both devices to the lock and then a third fixed surface. Loop one end of the vinyl-coated, galvanized steel cable around a secure object, attach one lock to your notebook and the other to a dock, printer or display. Insert the key into the lock and turn clockwise 90 degrees to lock. The cable head swivels 360 degrees to help you position the cable as needed before you lock.