My experience when I bought this product is possibly peculiar to me. But I couldn't use it when I got it. The card could not be formatted for use. I spent quite some time trying to figure out a solution and, because of my training as an electronics engineer I do not easily drop such challenges. To cut the story short I failed to find a way to format the card. I did get in touch with the vendor after i had thoroughly fought with the little device and lost, and smashed it to show it I was still in charge. The vendor acknowledged there might have been a problem with the card, and offered to replace it if I could send the bad one. I opted not to send the pieces of carbon and wire I still had with me and that is how my 20pounds went up in smoke. Some Vendor! But I Know better than to be trapped in their net again.