Alienware AW2723DF 27" 1440p 280Hz Gaming Monitor (Lunar Light) - Manual (Page 70)

70 | Operating the monitor
Using the tilt, swivel, and vertical extension
NOTE: The following instructions are applicable only for the stand that
was shipped with your monitor. If you are attaching a stand that you
purchased from any other source, follow the setup instructions that were
included with the stand.
Tilt and swivel extensions
With the stand attached to the monitor, you can tilt and swivel the monitor for
the most comfortable viewing angle.
NOTE: The stand is not installed at the factory when shipped.
Vertical extension
NOTE: The stand extends vertically up to 110 mm. The following figure
illustrates how to extend the stand vertically.