Minimalist hard drive stand consists of four strips with screw holes and slots for four 3.5in hard drives. "mounting tabs" mostly just function as stand-offs but for my use, they allow the stack of drives to be set in a case where expansion cards would go. (next to an ITX mobo that doesn't extend to that space)

NOT intended for hanging off the mounting tabs or holding drives vertically. You are free to use at your own risk.

Printed for myself with standard PLA, and found it to be plenty rigid. ABS ought to be better though.

The model could be cut down if you wanted to customize it some, but I'm hoping this is generic enough to be useful to others also. Just print 4 stands. they can be screwed down right side up or upside down.