Lenovo Kensington Microsaver Security Cable Lock (73P2582) Super-strong, steel composite cable with carbon-tempered steel core Patented T-bar lock provides superior lock strength in the security slot and theft protection Sleek styling and design won't block notebook ports or lift a notebook off the desk Easy to install and use in the office or when travelling Compatible with ThinkPad notebooks and docking solutions, ThinkCentre desktops, ThinkVision monitors and projectors