I'm so disappointed in SanDisk. I bought this for my Galaxy S3 phone. Worked great for the first few months. Suddenly I noticed some pictures were missing. Then it kept giving me an error that the 'SD card has unexpectedly stopped working' then i tried popping out the card and popping it back in. Now it says unrecognizable files and it asks to format the mp3's I had bought and stored on the microsd card. In a pinch just to see if this would fix my issues I formatted the disc. Now I lost everything and it is still giving me issues. Read some similar issues from other customers, now I'm regretting my purchase. Save your money and headaches and buy something else!