I remixed this because the remixes that I based on didn't fit my monitor, so I adapted.
Attachment should be the same as the original.
Look at the pics there for reference.
[ IMPORTANT ] The piece that you see in the photos mounted to the monitor, is the first version that block the hdmi, the 2nd piece has the issue fix.
Vesa_Adaptor_Asus_VX239H.stl | 251.6KB |