Problem: The case has limited space for hard drives, and using the 3.5" bays blocks the use of 2.5" slots.
Solution: Add a 3D-printed drive shelf that uses the existing 120mm fan mounting pattern.
Design:
Read more about this project, get into the BOM, see other mods for the Sliger CX4200A here: https://esologic.com/sliger-mods
The author marked this model as their own original creation.