MSI 7D40-005R Manuel D'utilisation page 31

Installing M.2 module into M2_2 slot
1. Secure the supplied M.2 standoff.
2. Insert your M.2 SSD into the M2_2 slot at a 30-degree angle.
3. Secure the M.2 SSD in place with the supplied M.2 screw.
30º 30º
3 3
1 1
2 2
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