Designed in collaboration with Microsoft the Combination Lock for Surface Pro and Surface Go delivers uncompromised security. Non-invasive locking technology is supported by a secure carbon steel cable. From Kensington inventor and worldwide leader in laptop security locks.Exclusively designed for Surface Pro [not compatible with Surface Pro X] and Surface Go to provide professional-level security and superior device engagement.Non-invasive locking technology delivers an easy-to-use security solution that requires no device modifications preserving the Surface Pros hardware warranty and aesthetics.The strong lock head is tested for torque/pull foreign implements lock lifecycle corrosion strength and other environmental conditions this lock head meets Kensingtons industry-leading standards for tamper resistance reliability and durability.A 1.8m (6ft) plastic sheath-covered carbon steel cable resists tampering and offers the same level of cut-resistance and theft-deterrence as thicker cables.Register & Retrieve Kensingtons free online program provides quick secure code registration.With a two-year warranty you can rest assured knowing youre covered by Kensington inventor and worldwide leader in laptop security locks.