This remix was made to be able to organize 4 external hard drives. I modeled it based on a 4tb Toshiba drive. I think it can be compatible with a lot of portable units. I tried it with an old WD Elements but it was too narrow to fit. I also consider that it is easily modifiable.
There is also a space where you can stick labels to identify each disc.
It is completely compatible with the original model and is equivalent to the 100x150 piece with double height.
original model:
https://www.printables.com/es/model/376225-catch-all-trays-desk-organizer
https://www.printables.com/es/model/399667-catch-all-trays-desk-organizer-stackable-remix
The author remixed this model.