I have not had many problems with what I have bought over the years, but when I do I will make sure to warn others. I loaded a handful of videos from my PC and then installed this in my Android tablet for a trip. Corrupted. Nothing worked and sometimes it can be seen, other times it doesn't even show up. The tablet wants to format it, which it has never been able to do successfully, and needless to say it is too small to even be a paperweight. The SD adapter that it came with was also junk and upon the first time I went to use it, it simply didn't feel right--- so I used my trusty Lexar micro SD to USB that came with my Lexar 32gb micro SD card.I would have expected more and unfortunately as it stands many people have success with them working and equally those that do not. I have even formatted it to see if it made any difference and there was none. And of course my window of return is gone so unless the seller stands behind it--- it is going in the trash. I knew I should have gone with what I had purchased before as I have three of them working perfectly for over a year. Moreover what is even a bigger disappointment is that our camera that uses a standard SD card and it is a no-name with no identifying marks---- has worked for two years without a problem.I do know problems arise, but..... when the cost of a product goes up and up and the quality control goes down--- I am not going to be the one accepting those terms. If you're looking for a good card, search Amazon for this one: LSDMI32GBSBNAR. This is the Lexar and I have thousands of pictures, video clips, and it has even endured three updates to my phone--- plus I carry my phone everyday so it is subject to everyday life all the time, it has been tough stuff.