Kensington 64031 Microsaver Notebook Lock & Cable Security Device (PC/Mac) Kensington Edge: Steel computer security cable with white exterior with Kevlar brand fiber for powerful protection thats 40% stronger Wide range of compatibility--laptops, monitors, and any device with a Kensington security slot - the industry standard One piece design for ease of use - no little pieces to lose or misplace with this computer lock Patented T-bar lock provides most secure connection to security slot No screws, brackets or glue for installation of this computer lock - no changes to your computer