This is Atomstack M100 Noctua Mod. Atomstack M100 is used in Atomstack S20 Pro or A20 Pro laser engraver. I can use it with zero sound.
You need:
1) Fan: Noctua NF-A6x25 FLX
2) DC-DC converter 24 V → 12V: MEAN WELL SPU03N-12
Just print it with supports and use original screws. Optionaly use screws for fan cover.
The author hasn't provided the model origin yet.