Dell 34 S3422DWG 34" 21:9 Curved FreeSync WQHD 144 Hz HDR VA Gaming Monitor - Manual (Page 37)

Setting up the monitor │ 37
Securing your monitor using Kensington (optional)
The security lock slot is located at the bottom of the monitor. (See Security lock
slot )
For more information on using the Kensington (purchased separately), see the
documentation that is shipped with the lock.
Secure your monitor to a table using the Kensington security lock.
NOTE: The image is for the purpose of illustration only. Appearance of
the lock may vary.