There is some mess of cables at the bottom of the case, again because of the non-traditional position of the power supply. To solve this problem, the manufacturer provided special braces for the power cables:
And for the interface cables from the front panel:
The system case offers two 5.25” bays and three 3.5” bays (one more 3.5” bay is internal).
The case comes with mainboard fasteners, some spare rubber hangers for the HDD container and rails to install your 5.25” and 3.5” devices.
The rails are labeled to avoid confusion. To install an optical or hard drive you must first open the front panel: