I received the micro sdxc card in new condition, I put it in my phone and while transferring data to it I noticed that the data transfer speed was slow (6 mb/s) below the targeted minimum speed for a this card type sdxc (10 mb/s). So I did research and the card is fake, It is made in taiwan while the original ones are made in korea and have different serial number. Also you can notice that the edge is black while the original ones has a white edge.