Dell D15U001 Service Manual page 18

Steps
1. Align the notch on the solid-state drive with the tab on the solid-state drive connector on the system board.
2. Insert the solid-state drive at a 45-degree angle into the solid-state drive connector.
3. Replace the screw (M2x3.5) that secures the M.2 2230 PCIe solid-state drive to the system board.
Next steps
1. Install the side cover.
2. Follow the procedure in after working inside your computer.
18 Removing and installing components