Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4650279.

Rear facing headphone hanger for MSI OPtix MAG271CQR. The build in hanger goes out to the left and I need it going out to the rear, this adapter will clip on to the existing hanger and when pushed in should lock in place.

The insert in to the monitor is thin, if you're concerned about it breaking inside the monitor then remove it for slightly a less sturdy mount.

This wont easily come off once you've clipped it on, safer to cut it off.