Question: what is the difference between m2 and m.2 2280?
Answer: 2 SSDs typically come in three dimensions, which may be deduced from the card name —2242, 2260, and 2280 — "22" represents the width in millimeters (mm), while the next two digits represent the length, also in mm. The longer the drive, the more NAND flash chips can be mounted; hence, more capacity.