SSD Form Factors

The form factor is a more modern type of internally mounted expansion card that

2 SSD cards have two types of connectors, also known as sockets: B key sockets and M key sockets A single card can also have both key types The type of key

m2 pcie 40 in 30 slot For example, the ASUS Z97-A lists the slot as Socket 3, with M Key, type 22602280 so it supports drives that are 22mm wide and either

m2 slot types 2 SSDs are keyed at both M and B positions, so they can fit in SATA slots and PCIe , even if they might not work in the latter NVMe SSDs are keyed only