Two types of SSDs: SATA and NVMe

m2 slot types   Dan m2 slot

If a system has an PCIe slot, an SATA SSD with identical keying will fit in the slot but will not work, and vice versa There are some systems that

The designation simply refers to a form factor for an SSD, and it is not inherently better than other types of SSDs like SATA or PCIe  Before you buy an SSD, you should check which type of slot your computer is using An B key slot is only compatible with B+M key

mainmain slot Two types of SSD Note: SSDs using the PCIe x4 bus use M-keys since it is the only one that supports PCIe x4 lanes  2 slot is a type of expansion slot found on modern motherboards that is primarily used for connecting solid-state drives These slots are