https://www.krystaic.com/product/industrial-ssd/m-2-sata-2280-ssd.html An M.2 SSD is a small form factor solid state drive (SSD) that is used in internally mounted storage expansion cards. An M.2 SSD conforms to a computer industry specification and is designed to achieve high-performance storage in ultra-thin, power limited devices, such as Ultrabook, Laptops and Tablet computers.