08-30-2014 11:20 PM
The Market is flooded with fake microSD cards, especially on Ebay, these card mount OK, report correct capacity written on the package, and never report an error when capacity of the original card before modification has passed, These cards even format OK to the fake capacity. Here is an example, a card physically is 4GB but its label and FAT file has changed to say 64GB. You never know it is fake except to find out after 4GB in this case is reached and files start not to exit even when the FAT file tells you your file is in the memory. H2testw software is very slow, but you can test your card by writing a lot of large files like videos to the card and find out is it really is what claims to be. Also note older devices don't read exfat formated cards, so read the specs of your device may be SD card is not the problem. Buy SD cards from large chains or authorized dealers, consider the rest fake. Use your PC to Test the card immediately after purchase because you might pass the window to return it.
08-30-2014 11:36 PM
I bought a fake Sandisk 64GB from Ebay, it was only 4B, he seller returned my money immediately and did not even asked to send card back. I read we can report incidents like these Sandisk to start an investion, but I don't know Sandisk cares or not, please let me know thanks..
08-31-2014 02:26 AM
I put this post up originally (ages ago) because my wife had problems with two cards that she' d purchased in the Philippines; they were not bought on eBay, but through a retailer. These cards subsequently proved to be fake. We were unable to retrieve any of the images on these 2 Gb cards even after sending them to SanDisk themselves, who offer a recovery service.
As stated above. The cards read correctly as the stated size, could be mounted and formatted. However, once they had reached capacity they would no longer function; the images could not be read at all. Effectively the cards become unmounable.
08-31-2014 10:57 AM
I think I am late to the party, did some reseacch on the net to find out this been going on for a long time. These fake cards drive you crazy because they don't give you a clue what is happening. I also found out Ebay does not really care what these scammers are doing, and challenging these seller is a big hassle that does not go anywhere, the best we can do make this problem as public as we can. I bought Samsung Evo class 10 card from Walmart so far it functioning perfectly and super fast.
08-31-2014 03:42 PM
I did checked 7dayshop.com, holly sh*t, they are Brits, unreal prices $98 for 64GB class 3, here a class 10, 64GB sells for $60 form the best retailer in US, where this is only place professionals trust, no I don't work for them I think the VAT tax really works over there,
09-23-2014 05:38 PM
Here is one more free utility that you can quickly use to confirm your microSD card authenticity, using your Android device.
SD Insight on the Google Play store:
09-23-2014 09:49 PM
This is very genuine way I found to detect fake sd cards using
There is also an android app available on Google Play store that helps you to detect fake sd cards directly from your android device.This is very good micro sd card test software available on Google Play store for FREE.This Android app will write a test file and read it back testing it's content to spot fake external memory of your device. It will test the speed and the storage capacity. Useful to check for a damaged or fake card.Check SD Card Tester Android App from Google Play Store.
Source : How to Verify Fake Micro SD Card
10-24-2014 09:55 PM
I recently purcased a Sandisk Extreme Pro 280MB/s SD Card from a reputable Sandisk Reseller & got the following results using H2testw v1.4:
Warning: Only 60317 of 60318 MByte tested.
Test finished without errors.
Writing speed: 34.1 MByte/s
Reading speed: 35.9 MByte/s
Am I getting my MB/s & MByte/s symbols mixed up?
The reason I tested is because I used it in my BMPCC & got drop frames.
10-25-2014 10:12 AM
Very helpful. However, not that much use after you've already bought them. The cards that my wife bought and used initially checked out fine. She took many images until the card was full. All the images previewed before and after; it wasn't until she removed the card from the camera and later reinserted them that she noticed the fault - by then it was too late and she could no longer which shop she'd bought them from (in the Philippines). Anyway, thanks for the tip. 😊