Used an app a1sd bench that told me it is indeed a legit card by write speed. There's the test on a computer which told me it is indeed a 256gb card. All is well. Very happy.
Verified purchase: Yes | Condition: New
This may be for some other reason, but this card will not allow file sizes over 4.5 GB to download onto it! It is possible that the formatting may be the issue, but i do all my cards the same, and none of then have this limitation. I use 128 cards in my cameras and for file transfer and none of them have this restriction--I have another 256 card, the slightly more expensive one, it downloads faster and has no file limitations. The card does work, and if you are just after a lot of storage that is not lightening fast, then this would be fine--also my computer recognizes this card as a SDHC and not an SDXC, which is puzzling since sdhc can not go past 32 GB of storage !!! It does seem to work alright, but the differences between the two cards makes me wish I had gotten the slightly faster but more expensive 256 GB card--of the same brand name.Read full review
Verified purchase: Yes | Condition: New
The cards I received were counterfeits. I purchased 2 256gb cards, but both only had a capacity of 32gb. While both appeared to have the advertised storage capacity, after attempting to transfer data to them they crashed once 90gb claimed to have been written, and afterwards they each contained exactly 29gb, and most of the files were missing. I was carefully monitoring the transfers & was putting different files on each card. Quick reformatting did nothing, and full reformats were unsuccessful after 8 hours of waiting.
Verified purchase: Yes | Condition: New
I took the card to the Microsoft store because Windows would not recognize it. The tech support guy did his testing and told me the card had failed and needed to be replaced. I have to waste my time contacting Samsung for a replacement. And there is no chat feature or email support for this because it's handled out of their phone tech-support division. So now I have to sit on the phone and waste more time.
Verified purchase: Yes | Condition: New
Not able to format the card . did try to format on a comp . still tryging. To not avail .now is on the garbage. I did buy from another brand and able to format the card. You card is on the garbage.
Verified purchase: Yes | Condition: New
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