Exclusively Designed for SurfacePro 7, SurfacePro 6, SurfacePro (5th Gen), SurfacePro 4 and SurfaceGo to provide professional-level security and superior device engagement Non-invasive locking technology attaches to the Microsoft Surface Pro & Surface Go kickstands without modification and preserves the Surface Pro & Surface Go hardware warranty Strong lock head meets Kensingtons industry-leading standards for tamper-resistance, reliability and durability Hidden PinTechnology is compatible across all of Kensingtons latest locks and includes patented anti-pick technology, all part of our robust 5mm custom key management solutions that include Master Keyed (K66643M) and Supervisor Keyed (K66643S) options Self-coiling steel cable stretches up to 2.3m (7.5 feet) or shrinks down to 10.16cm (4 inches) for easy packing and resists and deters cutting attempts Verified and tested for industry-leading standards in torque/pull, foreign implements, lock life cycle, corrosion, key str