A microSD card is a miniature variation of the SD card used in small portable electronics, like smartphones.
The technology behind SD cards is based on flash memory, which retains information securely even without a power supply. Nevertheless, even this technology has its limits. The electrical charges ...
If you have a bunch of those older, smaller-capacity flash memory cards lying around, I may have found something new that will let you use them once again. After all, you spent a lot of money on them ...