I've been looking for an affordable solution for storing my MP3-SD card and if the low price ordered this product on suspicion. The SD cards are loose in the individual subjects. The covers are transparent so that you can see at a glance which compartments are filled and which are not. In addition, the white fields on the lids can label easily.
I missed two things: The individual subjects go at me differently well on (catch) and the approximately A6-large bracket is missing an opportunity to fix it anywhere (such as an eye or two holes for a ring binder). But you can also tinker easy.
If you can live with that you get a good storage for 10 SD cards.