Some of the manufacturers let you validate. E.g. through their support chat you can check the serial number of a Sandisk to ensure it’s legit. I also usually do an f3write / f3read cycle to confirm it has all the space it’s supposed to and get a rough sense of the sustained write and read speeds.
Some of the manufacturers let you validate. E.g. through their support chat you can check the serial number of a Sandisk to ensure it’s legit. I also usually do an f3write / f3read cycle to confirm it has all the space it’s supposed to and get a rough sense of the sustained write and read speeds.