The Lenovo ThinkPad Yoga 11e 5th Gen (type 20LM, 20LN) Laptop Comes in 2 Different Drive Options from Lenovo and Supports Single Drive Configuration Only. (One M.2 NGFF (2242) Solid State Drive or One eMMC Solid State Flash Drive) Note: Models that have a eMMC Flash Drive are not upgradable, the eMMC Flash Drive is integrated on the system board and can not be upgraded or replaced. Machines with a M.2 NGFF (2242) Solid State Drive are upgradable.(The M.2 slot supports PCIe NVMe Solid State Drives)