The Dell Latitude 3310 Laptop Supports Single Drive Configuration Only. (One M.2 NGFF (2280) or (2242) or (2230) Solid State Drive) Note: The M.2 slot supports M.2 (2280) or (2242) or (2230) Drives by moving the metal mounting bracket to accommodate the form factor. (The M.2 slot supports SATA and PCIe NVMe Solid State Drives)