CR10S Pro 120mm Fan Adapter

Adapter plate to mount a 120mm fan to the 500W Meanwell power supply used in the CR10S Pro, removing the 40mm noisy fan and running a much larger and quiter fan instead. Does require modification of the bottom plate of the unit unless you can find a 10mm thick 120mm fan, 15mm ones which are the most common here were 2-3mm too thick.

Required components
* 120mm fan (10mm thick if you want to avoid cutting the bottom plate)
* 24v to 12v DC-DC adapter (I used a basic one of eBay for a few doll