Computer & Laptop Cable Locks

I am trying to purchase a security cable for my Mac Book Pro and would like to know if there is a security slot on any model--i do not see

security lock for laptop devices and how they work Kensington slot Kensington slot locks are the most common form of laptop lock cable

cable slot 6ft Laptop Cable Lock with Keys - Keyed K-Slot Security Cable

indian slot machine AGV & AMR Control System in Warehouse Industrial Automation Security System Electronic Control Unit for AMR Featuring one or multiple PCIe x16 slot and