Holder ( case ) storage microSD card slot and SD, MMC
Bought here – https://goo.gl/eGs4YO
Return from shopping on Aliexpress – http://epngo.bz/ali_epn_index/f0718
Earlier I memory card kept platkova just in case, but over time, MMC memory cards started to fall off locks, and some microSD cards just stopped working. It may not be because of this method of storage, but a fact. Holder allows you to store four 8 microsd or SD card, but instead of four microSD you can install one SD.