What processors is this motherboard compatible with?
It is compatible with AMD Ryzen processors using the AM4 socket. This typically includes Ryzen 3000, 4000, 5000, and 5000 G-series desktop CPUs. Always check MSI's official support page for the most up-to-date CPU compatibility list before purchasing.
Does it support PCIe 4.0?
Yes. The primary PCIe x16 slot (with Steel Armor) and the top M.2 slot both support PCIe 4.0 speeds, provided a compatible CPU (like Ryzen 5000 series) is installed.
How many M.2 slots does it have and do they have heatsinks?
It has two M.2 slots for NVMe SSDs. The top M.2 slot (PCIe 4.0) is equipped with the M.2 Shield FROZR metal heatsink. The second M.2 slot does not have an integrated heatsink.
What type of RAM does it support and what are the speed limits?
It supports DDR4 memory across four DIMM slots. The maximum supported speed depends on the CPU and memory kit used, but it typically supports overclocking beyond standard JEDEC speeds. Consult the motherboard's specifications for official supported speed lists.
Does it have built-in Wi-Fi or Bluetooth?
No, the MSI B550-A PRO does not have integrated Wi-Fi or Bluetooth. A separate PCIe or USB adapter would be required for wireless connectivity.
What RGB lighting features are included?
The motherboard includes Mystic Light support with RGB headers (typically 4-pin 12V RGB and/or 3-pin 5V ARGB). This allows you to connect and synchronise compatible RGB strips, fans, and other components using the MSI Mystic Light software.
What rear I/O ports are available?
The rear I/O panel includes USB ports (USB 3.2 Gen2 and Gen1), a Gigabit Ethernet port, audio jacks powered by Audio Boost, and standard PS/2 ports. The exact number and configuration of USB ports should be verified in the detailed specifications.