rigvelaMSI B550-A PRO
M.2 slots and conditions
Two checks matter here: whether the selected connector supports the SSD interface, and whether PCI_E3 is needed. Two similar-looking M.2 sockets do not imply identical SATA support.
Storage sources reviewed: . An individual build and installed BIOS have not been tested.
Connector table
On a narrow screen, scroll the table sideways. Match connector names to the board and manual.
| Connector | Connection and length | Conditions |
|---|---|---|
| M2_1 | PCIe 4.0 / 3.0 x4 + SATAModule lengths: 2242 / 2260 / 2280 / 22110 | PCIe mode depends on the installed CPU. |
| M2_2 | PCIe 3.0 x4Module lengths: 2242 / 2260 / 2280 | A PCIe SSD in M2_2 disables PCI_E3; do not transfer this rule to another slot based on its appearance. |
What to check on this board
The documentation lists M.2 SATA for M2_1. M2_2 is recorded as PCIe, so a matching size alone does not confirm a SATA drive there.
Work through your conditions
Choose the SSD interface and length, then the known configuration details. CPU options reflect the RigVela catalogue and recorded family support; the required BIOS remains a separate check. Notes are calculated in your browser. The selected CPU, SSD model, connector, interface and length, and shared-connection choice can appear in reference links when navigating or changing language. Your build is not changed.
Before installation
Verify exact model and revision, installed BIOS, current connections, mounting, heatsink and height clearance. A disabled connector, an occupied position and an unsuitable interface are different problems. Do not erase a drive to diagnose its connection.
Documentation
For another revision or updated documentation, recheck conditions with the manufacturer. This reference covers storage, not every motherboard specification.