The Lenovo ThinkPad L14 Gen 1 (Intel) Laptop Comes in 2 Different Storage Modes and Supports Single and Dual Drive Configurations. (SSD/HDD Mode: One 2.5" Solid State Drive or Hard Drive and/or One M.2 NGFF (2242) Solid State Drive) or (One SSD Mode: One M.2 NGFF (2280) or (2242) Solid State Drive) Note: Lenovo uses 2 different system boards for this model with 2 different drive configurations. The SSD/HDD Mode boards have One 2.5" Drive bay and One M.2 (2242) Drive slot and the One SSD Mode boards have One M.2 (2280) Drive slot which occupies the 2.5" Drive bay. The M.2 (2242) Drive uses a adapter bracket p/n 5B40Z68814 to accommodate for the larger M.2 (2280) slot.