I/O Crest M.2 NGFF PCIe SSD to PCI Express 3.0 x4 Host Adapter Card - Support M.2 M-Key PCIe (NVMe or AHCI) Type 22110, 2280, 2260, 2242 The IOCrest SI-PEX40110 allows you to install an M.2 NGFF PCIe SSD with a High or low profile PCI 3.0 X4 card to your system. It is designed to work only with 'M' key M.2 PCIe SSD. Not compatible with a 'B' key M.2 PCIe X2 SSD or 'B' key M.2 SATA SSD. This adapter is only for 'M' key M.2 PCIe SSD such as Samsung XP941/SM951/950 Pro, Plextor M6e Series, Kingston HyperX Predator M.2 SSD and so on. Not compatible with a 'B' key M.2 PCIe x2 SSD or 'B' key M.2 SATA SSD.