Problem is, i bought it from the same place i usually get my cards ( like one for my phone and other devices) and from the same brand ( which is SanDisk Pro Line).Just use common sense. If its too good to be true, then it usually is. You can never tell the quality of legitimacy of an SD card before buying so make sure you check multiple places prior to making a purchase.
So yeah, that's why i'm asking if i should be looking for anything specific.
I don't have enough cash to throw out brand new SD card after half a year of use . Especially 1TB one