Top critical review
Reviewed in the United States on December 2, 2019
I knew fake cards were a big issue on here but i had an Amazon gift card and i thought i'd be safe -- it was sold by Amazon and not a third party, it came in unopened official packaging (the picture is from after i opened it), and the fonts and colors and texture on the card were all right and matched legit SanDisk cards i had gotten in the past, not looking anything like the knock-offs that other people have gotten on here.
So, confident that i had managed to get an actual legitimate card from Amazon, i waited 2½ hours to copy my 118GB of old Nintendo Switch data onto this new 256GB card. I put it in the Switch, and the Switch tells me that data has been corrupted and will be deleted. I put the card back into my computer to try and figure out what went wrong, and it's still saying that 118GB of the card is used, but there's no files in the folder anymore.
I figure maybe there's an issue with the formatting, so this time, instead of formatting it with Windows's default settings, i go on Nintendo's troubleshooting website, download and use the official SD Foundation formatting tool they recommend, and then wait another 2½ hours to copy all my data again. Put it back in the Switch, same message.
I finally go and download H2testw and after another 8½ hours, the sinking feeling i was getting in my stomach is confirmed: only the first 29.5GB of the 256GB card works (also the read/write speeds are less than one fifth of what they're supposed to be).
I'm going to try and exchange it for another one. I may update this review, but i will not be changing the rating, because this should not still be an issue on Amazon at all after all these years.