The Lenovo IdeaPad Flex 5-14ALC05 Laptop Supports Single Drive Configuration Only. (One M.2 NGFF (2280) or (2242) Solid State Drive) Note: The M.2 (2242) Drive uses a adapter bracket p/n 5B40S21984 to accommodate for the larger M.2 (2280) slot. (The M.2 slot supports PCIe NVMe Solid State Drives)