The Dell Alienware m15 R6 Laptop Supports Single and Dual Drive Configurations. (Two M.2 NGFF (2280) or (2230) Solid State Drives) Note: Both of the M.2 slots support M.2 (2230) or (2280) Drives by moving the Solid State Drive screw mount to accommodate the form factor. If Installing a M.2 (2280) Drive, you will need the M.2 (2280) thermal heatsink cooling bracket p/n 26X1Y for installation.