What is the difference between a Kensington and Dell security cable?

What is the difference between a Kensington and Dell security cable? kensington lock slot Compatible with All Kensington Locks Metal Security Slot Includes Prep Pad and Permanent Adhesive Add the Security Slot Adapter Kit from Kensington to your kensington security slot™ It would seem that Kensington has identified the lack of a lock slot on ultrabooks and the like They have a solution: Security Slot Adapter

kensington security slot™ Insert the lock into the Kensington slot on the computer and secure the lock with its key or its combination Types of Kensington locks Kensington provides

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