Impeccable, even for smart phones

I bought this memory card for my Smartphone (LG E400 Optimus L3), because I use it as a second phone, mainly to my entire music collection (~ 45GB) while having.
This purpose they met, even if indicated in my phone that it only supports microSD cards up to 32GB.
The only thing to do is to format the card on your PC from exFAT FAT32 (for this there are enough programs, just ask a search engine).
So formatted inserts into the phone, turned on, connected to the PC, music draufgezogen - works.
It just needs to be noted that only FAT32 files can handle up to a file size of 4GB.
The writing speed I have not measured, but I would say for a Class 10 card, it is normal, it does not feel that the copying process is protracted.
Because I think, many asked whether the 64GB version also works in smartphones (walked me so), I can say that it performs its service perfect - strong buy recommendation!