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

What is the difference between a Kensington and Dell security cable? security cable slot The Kensington Security Lock mechanism involves the lock slot of a laptop and a cylindrical lock head attached to a metal cable with security door with mail slot Here's Maclocks' keyed cable lock to secure any device having T-lock slot Shop it on our

security door with mail slot ~~ Strong and secure lock and cable ~~ Fits into built-in Kensington security slot found in computers ~~ Patented T-bar theft protection In

security cable slot Nano Saver Lock Slot Keyed Laptop Lock Slot LAPLock Security Cable Lock for Noteb more 33 ratings YUKI Anti Theft System Security Pad Lock with Burglar Smart Alarm Siren Motion Sensor Alarm