Based on the Gridfinity project by Zack Freedman, a compact storage for Micro SD and regular SD Cards. 1x1x2u form factor, base accepts magnets.

Note before Printing:

There are two different models, one with tight slots, and one with larger slots. If you want your SD cards to be loose and not captured securely or are using a filament that shrinks, use the larger slots print profile. 

Update 09.17.24: I have increased the clearance for the larger SD card slots by 1mm, this should fix the clearance issues depending on the individual printer/material used.

Update 12.13.24: Added a print profile with a model that contains larger slots for those with issues fitting the cards into the slots.