I installed this on my Galaxy Note 2 and it crashed after one month. Lost all my pictures on the card. Had it not been for Google Plus instant upload and redundant backup to Dropbox all of the pictures would have been lost. I think I should get a refund but I did not keep the original packaging. I would not buy this, but if you do keep the packaging so you can return it. If you read most of the reviews you will see that a lot of people have had trouble with this card crashing. I don't think Amazon should offer it as it hurts their overall customer satisfaction.