MSI G41M series User Manual page 27

Serial ATA Connector: SATA1 ~ SATA4
This connector is a high-speed Serial ATA interface port. Each connector can connect
to one Serial ATA device.
SATA2
SATA1
Important
Please do not fold the Serial ATA cable into 90-degree angle. Otherwise,
data loss may occur during transmission.
SATA4
SATA3
Hardware Setup
2-13