eg "security cable". APC, Kensington, Belkin, Targus all sell versions, I believe. Differences include size of locking head, enforced orientation of locking head (ie in what direction does the cable come out, and is it on a swivel or not), key lock or combination, combination form factor, cable thickness, specific shape of locking insert, color, etc. They should all fit the standard, little, security lock slot in the laptop case. On Fri, 12 Sep 2003, Jason L. Petersen wrote: > I am looking for an external locking/chain for securing my Tibook and iBook > and wanted to know where you can get these at? Recommended site? What is > the correct term to search for? Thanks for the help!