The HP 10 x2 Notebook 10-p015nf Supports Single and Dual Drive Configurations. (One eMMC Flash Drive in the Tablet and One 2.5" Solid State Drive or Hard Drive in the Dock) Note: The eMMC Flash Drive is integrated on the system board and is not upgradable. If the 2.5" Drive was not installed from HP in the dock, you will need the 2.5" Drive bracket hardware kit p/n 902362-001 and docking board p/n 902372-001 for installation.