BenQ SW321C 32" 16:9 4K HDR IPS Photo and Video Editing Monitor - Manual (Page 33)

33 How to assemble your monitor hardware
7. If you intend to calibrate the display’s color
by a colorimeter, slide to open the cover on
the top plate so the colorimeter can be
installed.
Follow the instruction manuals of the colorimeter you
purchased and the provided software (e.g., Palette Master
Element ) to complete the installation and calibration
process.