Mercury
I got this card only a few months ago, used it on a Note 3, now it has failed. No matter what I try, attempts to format the drive or edit the files on it, whether using my computer or the phone, have all failed. The card's data is now essentially read-only, which is the only saving grace of this since I could at least save my data.Previous to this I had an issue with it corrupting photos randomly, with increasing regularity as it grew closer to complete failure. I am now going to be avoiding SanDisk when possible