The Dell Latitude-5404 Rugged Laptop Comes in 3 Different Drive Options from Dell and Supports Single Drive Configuration Only. (One 2.5" Solid State Drive or Hard Drive) or (One M.2 NGFF (2280) Solid State Drive) or (One mSATA Solid State Drive) Note: The 2.5" Drive and the M.2 Drive use different removable drive carriers. verify what form factor drive you have before ordering. (The M.2 slot supports SATA only Solid State Drives)