The Asus ProArt StudioBook Pro 16 W7600H5A Laptop Supports Single and Dual Drive Configurations. (Two M.2 NGFF (2280) Solid State Drives) Note: M.2 slot 1 (SSD-1) supports Generation 4.0 x4 PCIe NVMe Solid State Drives and M.2 slot 2 (SSD-2) supports Generation 3.0 x4 PCIe NVMe Solid State Drives. When Dual Drives are installed in RAID 0/1 mode, they will run at Generation 3.0 x4 speeds.