This is a little mount for the Y-axys stepper motor of the Elegoo Neptune 2 it mounts with all 4 screws and is 6mm shorter than the original aluminium bracket. This is so you can mount a dampener in-between.
If printed in PETG, a dampener is probably unnecessary, because the plastic provides enough dampening, compared to the original aluminium piece.
UPDATE 16.04.2023:
STEP file included for easy editing.
The author marked this model as their own original creation.