What is the difference between a Kensington vs Noble lock slot?

A Kensington lock is a security device that attaches a cable from a computer to a stationary object such as table

Fortunately there's a solution that's just as slim and sleek as the Ultrabook itself The Kensington Security Slot Adapter securely attaches to your Ultrabook

kensington lock slot lenovo Designed to meet the requirements of low profile devices, the 10mm diameter lock head is compatible with the standard Kensington Security Slot™ This

kensington nano security slot Ultrabook™, MacBook Air® and Chromebook™ laptops are valuable business tools and desirable for thieves And some ultra-thin laptops lack a security slot