Kensington 64343 MicroSaver DS Notebook Computer Lock with Keys saves you the thought of losing your notebook. So keep it safe and secure with this advanced disc-locking system featuring a carbon tempered steel cable, stainless-steel braided sheath, and patented T-bar locking mechanism that attaches to the standard Kensington security slot found in 99% of notebooks and computer devices made today. Sleek styling and design won´t block notebook ports or lift a notebook off the desk. From Kensington, the world leader in notebook security. Kensington Lifetime Warranty.