MSI B550M-A PRO Manuel D'instructions page 10

M2_1: M.2 Slot
Please install the M.2 device into the M.2 slot as shown below.
3
Supplied
M.2 screw
1
Standoff
SATA1~4: SATA 6Gb/s Connectors
These connectors are SATA 6Gb/s interface ports. Each connector can connect to one
SATA device.
⚠
Important
Please do not fold the SATA cable at a 90-degree angle. Data loss may result
∙
during transmission otherwise.
∙ SATA cables have identical plugs on either sides of the cable. However, it is
recommended that the flat connector be connected to the motherboard for space
saving purposes.
10
Overview of Components
2
30º 30º
SATA1
SATA2
SATA4
SATA3