The Lenovo ThinkBook 13x ITG Laptop Supports Single Drive Configuration Only. (One M.2 NGFF (2280) or (2242) Solid State Drive) Note: The M.2 slot supports M.2 (2280) and (2242) Drives by moving the standoff bracket to accommodate the form factor. (The M.2 slot supports Generation 4.0 x4 and 3.0 x4 PCIe NVMe Solid State Drives)