Now there's one keyed cable lock that secures it all. The Universal 3-in-1 Keyed Laptop Lock fits any laptop security slot - standard, nano, and wedge-shaped - helping to "future-proof" your locking solution. Lock tips are easily changed; a tether keeps unused lock tips handy. Common 5mm keying system, patented Hidden Pin technology, and carbon steel cable provide strong security against picking and theft attempts. Pivot and rotate lock head allows flexible movement and easy key insertion. Additional features include Register & Retrieve for quick, secure, and easy key replacement; master keyed for administrative access; and a five-year warranty backed by Kensington, inventor and worldwide leader in laptop security locks. All Kensington locks are verified and tested for strength, physical endurance, and mechanical resilience.