ASROCK B550D4M, User Manual, Page: 44 / 90

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2.12 M.2 SSD Module Installation Guide
The Ultra M.2 Socket (M2_1, Key M) supports a type 2242/2280/22110 M.2 SATA3 6.0 Gb/
s module or a M.2 PCI Express module up to Gen3 x4 (32Gb/s).
Installing the M.2_SSD (NGFF) Module
Step 1
Prepare a M.2 SSD module and the
screw.
2
1
3
A B C
Step 2
Depending on the PCB type and
length of your M.2 SSD module, find
the corresponding nut location to be
used.
No. 1 2 3
Nut Location NUT42 NUT80 NUT110
PCB Length 4.2cm 8cm 11cm
Module Type Type2242 Type 2280 Type 22110