The HP 340 G1 Notebook Supports Single and Dual Drive Configurations. (One 2.5" Solid State Drive or Hard Drive and/or One mSATA Solid State Drive) Note: If replacing the 2.5" Hard Drive for a 2.5" Solid State Drive, remove the Hard Drive bracket and connector from the Hard Drive and install them on the Solid State Drive. (The Hard Drive hardware kit p/n 746650-001 includes: Hard Drive bracket, connector cable and screws)