The Lenovo ThinkPad E15 Gen 3 (AMD) Laptop Supports Single and Dual Drive Configurations. (Two M.2 NGFF (2280) or (2242) Solid State Drives) Note: M.2 slot 1 SSD-1 supports M.2 (2242) Solid State Drives only. M.2 slot 2 SSD-2 supports M.2 (2280) and (2242) Drives. The M.2 (2242) Drive in slot 2 SSD-2 uses a adapter bracket p/n 5B40S72981 to accommodate for the larger M.2 (2280) slot. (Both M.2 slots support PCIe NVMe Solid State Drives)