The Lenovo Flex 6-14IKB 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 5B40T25363 to accommodate for the larger M.2 (2280) slot. (The M.2 slot supports PCIe NVMe Solid State Drives)