M2 SSD

Two types of SSD: Differences between SATA & NVMe m2 slot types Unlike mSATA, 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 m2 expansion slot 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

m2 slot mainboard Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express