Dell UP3214Q Monitor - Manual (Page 23)

Setting Up the Monitor  23
Removing the Stand
NOTE: To prevent scratches on the LCD screen while removing the stand,
ensure that the monitor is placed on a clean surface.
NOTE: This is applicable for a monitor with a stand. When any other stand
is bought, please refer to the respective stand setup guide for set up
instructions.
To remove the stand:
1. Place the monitor on a flat surface.
2. Press and hold the stand release button.
3. Lift the stand up and away from the monitor.
Wall Mounting (Optional)
(Screw dimension: M4 x 10 mm).