The Micro-SD works great in itself and does what it should. However, what did not work is that the cards have only a shelf life of several months. Have the cards inserted into my phone and they always used properly. However, after a few months they were all failures. Suddenly they are no longer recognized by now from the same mobile phone, a formatting or access on the PC is not possible. When I had used no cloud storage, it is also happened that several hundreds of stored photos were irretrievably lost. Although I always get a spare from SanDisk, but since the third card has become damaged today, I think the quality is absolutely bad. I will now look for a replacement and can each, where its data are dear only recommend that no micro-sd to buy SanDisk.