The Lenovo ThinkPad P16 Gen 2 Laptop Supports Single and Dual Drive Configurations. (Two M.2 NGFF (2280) Solid State Drive) Note: M.2 slot-1 (SSD1) is on the bottom of the Laptop behind the removable door and M.2 Slot-2 (SSD2) is on the top of the Laptop and requires removal of the keyboard to access the slot. Both M.2 slots support Generation 4.0 x4 PCIe NVMe Solid State Drives and can be set as RAID 0/1.