The Dell G17 7700 Gaming Laptop Comes in Different Storage Configurations and Supports Either 1 or 2 Drives Depending on the Battery and Graphics Card Installed. (Options with the GTX 1650Ti Graphics Card Installed and the Smaller 3-cell 56Whr Battery Installed: One 2.5" Solid State Drive or Hard Drive and/or One M.2 NGFF (2280) or (2230) Solid State Drive) or (Options with the GTX 1650Ti Graphics Card Installed and the Larger 6-cell 97Whr Battery Installed: One M.2 NGFF (2280) or (2230) Solid State Drive) or (Option with the GTX 1660Ti/RTX Graphics Card Installed and either the 3-cell 56Whr or 6-cell 97Whr Battery Installed: One or Two M.2 NGFF (2280) or (2230) Solid State Drives) Note: Models that have the larger 6-cell 97Whr battery installed do not support 2.5" Drives due to the larger battery occupying the 2.5" Drive bay. The M.2 slots supports M.2 (2280) and (2230) Drives by moving the drive mounting bracket to accommodate the form factor.