Tough lock head that fits seamlessly into the latest Dell laptops and tablets with a wedge-shaped lock slot Unique lock engagement creates the strongest connection between the lock head and wedge-shaped lock slot Hidden Pin(TM) technology is compatible across all of Kensington\'s latest locks and includes patented anti-pick, all part of our robust 5mm custom key management solutions that include Master Keyed (K66645EUM), Supervisor Keyed (K66645EUS) and Like Keyed (K66645EUL) options Self-coiling steel cable stretches up to 2. 3m (7. 5ft) or shrinks down to 10. 16cm (4in) for easy packing and resists and deters cutting attempts Pivot and rotate cable provides superior laptop engagement Verified and tested for industry-leading standards in torque/pull, foreign implements, lock life cycle, corrosion, key strength and other environmental conditions Register & Retrieve(TM) program offers free and secure cloud-based key replacement