These were advertised as SanDisk 400 GB cards and the price was $55. Mine would only hold 29 GB. I downloaded H2testw software and ran a test that took almost 15 hours. Results, 29.2 GB good,361.3 GB corrupted, a picture is included. Personally I don't think Amazon should allow the product in an auction to be changed. A new auction should be started. I would not buy from seller. The product is on its way back to Amazon. The only reason I gave it one star is because Amazon made me.
Do not buy, the picture used to be Sandisk which is what I received. Used card in my video camera, and it started acting up after ~35 gigs were used, after testing it which I should have done from the start it was found to be only a 30gig card and several videos I had were overwritten... I cant return this as it took me over 30 days to figure this out. I'm out 50 bucks for this garbage. Amazon needs to remove this item.
This item is a fake. When I purchased the card it was advertised as a Sandisk ultra 400gb card and it failed to download past around 50 gb. I DO NOT reccomend this product, this listing should be removed.