The HP 14 Laptop 14-bs049tu Comes in 2 Different Drive Options from HP and Supports Single Drive Configuration Only. (One 2.5" Solid State Drive or Hard Drive) or (One M.2 NGFF (2280) Solid State Drive using a Adapter Bracket) Note: When the M.2 (2280) Drive is installed, the M.2 Drive occupies the 2.5" Drive bay using a M.2 adapter bracket. If replacing the M.2 Drive for a 2.5" Drive, you will need the 2.5" Drive caddy p/n 925354-001 for installation. If replacing the 2.5" Drive for a M.2 Drive, you will need the M.2 Drive adapter bracket p/n 925355-001 for installation. (The M.2 adapter bracket supports SATA only Solid State Drives)