Feb 18, 2019 - Product Code and Serial Numbers Location. Where can I find the product code or serial number on a SanDisk product? Solid State Drive (SSD). I just bought a fake Sandisk Extreme III 4GB card from Adorama. After reading. The serial number was good, but I told them about the color. Format, only the new (differently branded) SDHC format.
H2TestW will test if the card is any good. It does not actually verify that it is a counterfeit. It only provides a good test to see if the card is working properly. You would still need to collect all the nearly microscopic letters and numbers on the card and call SanDIsk support to see if they can decode those numbers and match it up to being a valid SanDIsk product.
As good as SanDisk may be, even a faulty genuine card would fail using H2TestW. Having said all that, you really need to consider the source of where you are getting the card. If it is from eBay and the price is incredible it is most likely a counterfeit. I have bought 4 cards from various online sellers (eBay and Amazon Marketplace Sellers) and ALL were counterfeit. Fortunately, I was able to prove my case and got full refunds for all of them. I have also been vigilant on checking out eBay auctions and getting the auctions closed when the user states something in the auction that indicates the card is counterfeit.
So going by what we have now and we stick to the 3 month gap, We got announcement late may in japan, (releases 3 months later in august) So most likely around e3 time we will get west confirmation with a release 3 months later in the west. 
So my guess is around novemberish.
For example, Kingston does not make a Class 6 32GB Micro SD card. If you see an auction for a Kingston Class 6 32GB Micro SD card, it is a counterfeit. What I have seen in regards to these counterfeits is they appear to work initially. Thus people are willing to post positive feedback for the seller before the trouble begins. Sadly once the trouble begins, the buyer has already lost many pictures and files they thought were being captured and saved. If you are still inclined to buy a Micro SD card off eBay or Amazon Marketplace, be sure to test it as soon as you get it with H2TestW and call the supposed maker of the card with the numbers.
It has to pass both tests before you can feel safe that it is valid. Amazon and Amazon Marketplace are different. A card bought from Amazon directly is probably going to be a good card. Amazon also allows individuals to sell items through Amazon and they are called Amazon Marketplace Sellers. Buying anything from a marketplace seller is very similar to buying that item off eBay.
Hi I have just experienced a similar problem with a 32GB Class 6 Memory Card purchased from Hong Kong on eBay. I took a lot of photos using my Canon DSLR Camera and everything was going fine until I tried to transfer them from the Camera to the PC.
Only a handful of photos transfered over and the rest become corrupt. I thought that this was strange and so investigated further. I used the software program H2testw to run a test on the card and here is the report: The media is likely to be defective. 1.9 GByte OK (4011870 sectors) 29.3 GByte DATA LOST (61481122 sectors) Details:29.3 GByte overwritten (61480240 sectors) 0 KByte slightly changed (. HI, Most of microSD 16GB and 32Gb on eBay from HK are 99% fakes.