MSI MS-S322 User Manual page 14

JPWR7: Rear Side BP Power Connector
This connector provides power output to HDDs on rear side.
⚠
Important
Make sure that all power connectors are securely connected to the power supply to
ensure stable operation of the motherboard.
14
Motherboard Connectors
JPWR7
1 2
3 4
1 GND
3
P12V
2 GND
4
P5V