This functional has 24 USB Stick holders, 9 SD Card holders, and 13 Micro SD card holders. Each holder has enough room to hold each type of drive loosely, so as not to damage the stick or card, but hold it upright so it is visible at all times. Very nice item for organizing desk space and removing clutter from storage drives. The best print setting that I have found are, aside from Cura default in "Normal: 102% Material Flow 30% Infill No Support Necessary I hope you enjoy this print, and hopefully it is as useful for you as it is for me!