The Lenovo ThinkPad X1 Extreme 5th Gen Laptop Supports Single or Dual Drive Configurations depending on the Graphics Installed. (One M.2 (2280) SSD Slot with the NVIDIA GeForce RTX 3060/3070 Ti/3080 Ti Graphics) or (Two M.2 (2280) SSD Slots with the NVIDIA GeForce RTX 3050 Ti Graphics Installed) Note: Both M.2 slots support Generation 4.0 x4 PCIe NVMe Solid State Drives and can be set as RAID 0/1.