Lenovo ThinkStation P7 Manual page 35

8. Install the cover as shown. Then, slide the cover latches to the locked
position.
9. Install the M.2 NVMe drive PCIe adapter in a PCIe x16 card slot on the
system board.
Note: Although the Quad Adapter supports multiple M.2 sizes, all of the Lenovo
qualified drives are 2280 M.2 drives.
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