Double up 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 pair and lock loop one end of the 7 ft 2 13 m 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 room to move the cable head swivels 360 deg