The Lenovo Security Cable Lock (57Y4303) allows customers to manage physical security access within the enterprise, offices, schools, libraries and research labs. Cable locks help reduce theft, and increase physical asset security protection for laptops, laptop docking stations, desktops and flat panel monitors. Patented T-bar lock provides most secure connection to security slot; does not work with Dell "wedge" or "Noble" lock slot. NOTE: May not work with 2016 and newer Lenovo and Dell laptops and tablets including some Lenovo Inspiron, Latitude, Venue, XPS, and Chromebook 13 models that use the Noble lock slot. Please review your device’s technical specifications. Wide range of compatibility--laptops, monitors, and any device with a Kensington security slot - the industry standard