Use 3mm heat set inserts to attach PCB.
attach mount to case with 2 sided tape or similar.
Pinouts:
5 HDD LED +
18 HDD LED -
19 PWR LED-
20 RST GND
21 RST
22 PWR
23 PWR LED +
24 PWR GND
Break out board (25P 1mm pitch)
https://www.aliexpress.us/item/3256806021772077.html
The author marked this model as their own original creation.