The Compulocks MBPR16LDG02 Ledge lock adapter is made for the 16-inch MacBook Pro (2021), model A2485. It adds a connection point for a compatible security cable, so the laptop can be secured at a fixed workstation.
It works with standard T-Bar cable locks. The adapter fits into the MacBook slot and is secured with attachment screws, providing a way to connect the laptop to a cable-lock setup.
Package contents listed in the assembly instructions: two Ledge parts, attachment screws, and a T-7 Torx driver.