This is an adapter that allows you to mount your ASUS zenscreen on a monitor arm to use as a second screen while at your desk.

It takes 4x M3 screws (or M4 if you drill out the holes slightly) x 16 mm with a nut and washer for the back. The screws shouldn't scratch the back of the screen and it allows easy slide in and slide out of the monitor.

Now you can get use of your portable monitor not only when you're traveling.

(Note, the clean version is where I repaired the mesh. Depending on your printer and slicer, one or the other may be better for you)