MSI B760I EDGE WIFI DDR4 Manuel D'utilisation page 29

M2_1~2: M.2 Slots (Key M)
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Important
Intel® RST only supports PCIe M.2 SSD with UEFI ROM.
Installing M.2 module into M2_1 slot
1. Loosen the screws of M.2 Shield Frozr heatsink.
2. Lift up the M.2 Shield Frozr heatsink and remove it.
3. Secure the supplied M.2 standoff.
M2_1
2 2
3 3
27
1 1
1 1
M2_2