MSI PRO B650M-P Manuel D'utilisation page 29

PCI_E1~3: PCIe Expansion Slots
⚠
Important
If you install a large and heavy graphics card, you need to use a tool such as MSI
∙
Graphics Card Bolster to support its weight to prevent deformation of the slot.
∙ When adding or removing expansion cards, always turn off the power supply and
unplug the power supply power cable from the power outlet. Read the expansion
card's documentation to check for any necessary additional hardware or software
changes.
SATA_1~4: 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.
PCI_E1: PCIe 4.0 x16 (From CPU)
PCI_E2: PCIe 3.0 x1 (From B650 chipset)
PCI_E3: PCIe 3.0 x1 (From B650 chipset)
SATA_4
SATA_3
27
SATA2
SATA1