After I inserted the micro SD card to the adapter I can no longer removed it from the adapter. It was stuck inside the adapter permanently. I definitely received a defective item. I also read a lot of reviews saying this card have bad sectors.Another, while I was transferring from my computer the transferring of files suddenly stopped and said there was an error.Sandisk's quality control department should up their game. They're selling products to the general public that are defective and flawed (not all of them BUT a lot of them). It's just not me. I also read a lot of reviews saying the card they got were also defective.