Kensington 64053 MicroSaver Retractable Portable Notebook Lock (PC/Mac) Retractable, portable security cable with lock ensures portability, mobility, and security Compact lock will not block other ports Patented T-bar lock provides superior strength Strong, slim, 4-foot cable stows in easy-to-carry case with security loop NOTE: Not compatible with several 2016 Dell laptops and tablets including some Inspiron, Latitude, Venue, XPS, and Chromebook 13 models that use the Noble lock slot. Please review your devices technical specifications.