Write speeds between 3-10 MB/s (genuine UHS-3 cards are minimum 30 MB/s)
More than 80% of data becomes corrupted
All SD adapters are defective
Memory card body material is black and doesn't match genuine Samsung microSD cards
SD adapter lock switch material doesn't match genuine Samsung product
Low quality printing on the memory card and adapter, blurred edges and misaligned registration
Low quality color printing on card packaging
Fails verification by Samsung Memory Card Authentication Utility