The key is that the case uses 6x 4 drive back planes. Each taking a molex connector.
The backplanes are simple affairs. They each support 4 drives, they’re just passive breakout backplanes, with hotswap, take one SFF-8087 connector, and a 4 pin molex connector. My PSU was big enough, and came with 3 sets of molex peripheral cables, so I ran all 3 to the backplanes. 2 backplanes per cable. Connected on the earliest connectors on the cable. This distributes the load best.
