The Dell Inspiron 7400 2-in-1 Laptop Supports Single Drive Configuration Only. (One M.2 NGFF (2280) or (2230) Solid State Drive) Note: The M.2 slot supports M.2 (2280) and (2230) Drives by moving the metal mounting bracket to accommodate the form factor. (The M.2 slot supports PCIe NVMe Solid State Drives)