Kensington ClickSafe Combination Portable Cable Lock for Laptops, Notebooks, Tablets & Electronics - Secure Anti-Theft Device for Office, School, Travel & Public Spaces (K64698US)

Purchased for my daughter now at an urban university where security is an issue. It's a convenient cable and works well with the MacBook Air Kensington security dock. I can't help but think the cable itself is pretty thin, but so far she hasn't had anyone messing with the thing. She said all the cabling devices other students use are similarly thin. The only criticisms, well, maybe something people buying this device should just be aware of: the coiled cable, while excellent for finnegling in library carrels and other weird anchors, can be annoying and it can tug on the security dock/laptop, so just be patient and understand that's the deal with a coiled cable and it's just fine. Both of us found that the combo part can be tough to manipulate when securing to the MacBook Air security dock's rear stem and getting your fingers around the combination wheels is a little tricky, so just be aware of that and patient. Overall this cable is very convenient and much better than the uncoiled version in awkward anchoring situations like the library. Starbucks and the on-campus cafe, she says it's "super easy."