One way to spot Fake Cards

I bought several cards then came across this forum about how to tell which is fake and which isn’t.


For Micro SD cards I have uploaded a photo the top 4 are real legit cards…the other 2 on the bottom are fake I used this program to test them -

with all the same error messages like this: 

The media is likely to be defective.

7.7 GByte OK (16332800 sectors)

16.0 GByte DATA LOST (33757184 sectors)

Details:0 KByte overwritten (0 sectors)

0 KByte slightly changed (< 8 bit/sector, 0 sectors)

16.0 GByte corrupted (33757184 sectors)

0 KByte aliased memory (0 sectors)

First error at offset: 0x00000001f2700000

Expected: 0x00000001f2700000

Found: 0x0000000000000000

H2testw version 1.3