Features an ultra-thick 8mm carbon-strengthened steel cable for even greater security and peace of mind. Don't trust your notebook and sensitive data to anything less than the Kensington MicroSaver Keyed Ultra Notebook Lock. Patented T-bar locking mechanism provides a secure connection. Built-in defense system to guard against tampering. Low-profile lock heads won't block laptop ports or lift laptop off desk. Locks into the standard Kensington security slot found in 99% of laptops, as well as many flat panel monitors, desktops, printers and other devices.