The Acer ENDURO Urban N3 EUN314-51W Notebook Supports Single and Dual Drive Configurations. (One 2.5" Solid State Drive or Hard Drive and/or One M.2 NGFF (2280) Solid State Drive) Note: If the 2.5" Drive was not installed from Acer, you will need the 2.5" Drive Caddy bracket p/n 33.HGLN7.001 and cable p/n 50.R0PN7.006 for installation.