The Lenovo ThinkPad E14 Gen 4 (AMD) Laptop Supports Single and Dual Drive Configurations. (One M.2 NGFF (2280) Solid State Drive and/or One M.2 NGFF (2242) Solid State Drive) Note: There are two M.2 slots on the system board, slot-1 (SSD1) is for M.2 2242 Drives and slot-2 (SSD2) is for M.2 2280 Drives. (Both M.2 slots support Generation 4.0 x4 PCIe NVMe Solid State Drives)