Nearly every problem I've ever had with electronic components in my life has been caused by counterfeits that either lie about their capabilities, lie about what they're made of, or lie about whether they were QC tested. Maybe that means the SD card only stores a few real megabytes before trashing all of your photos. Maybe that means your phone charger destroys your phone. Maybe that means the battery in your ear explodes [0]. The thing about trusted brands is that at least they have brands to protect.