Simplecom EC412 Dual M.2 (B Key and M Key) to PCI-E x4 and SATA 6G Expansion CardEC412 is a PCI Express expansion card designed to add NGFF M. 2 devices such as SSD onto existing PC motherboard. Dual M. 2 slots support both PCI E based M. 2 device (M key, NVMe) to run via the faster PCI E interface at up to 32Gbps, and legacy SATA based M. 2 slot (B key) for connecting to a SATA III port. Features: Connects one M. 2 port (M key) into one PCI E x4 interface Connects a second M. 2 port (B key) into SATA 6G interface Supports two M.