MSI B550-A PRO ProSeries Motherboard
PRO series helps users work smarter by delivering an efficient and productive experience.
Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity.
Powerful Features Tailored for Modern Computing
- The MSI B550-A PRO ProSeries Motherboard is designed to meet the demands of today’s advanced computing systems while ensuring seamless compatibility with AMD AM4 processors.
- Equipped with support for DDR4 memory and PCIe 4.0 technology, this motherboard lets you unleash high-speed computing and gaming capabilities without compromise.
- Whether you’re upgrading your current PC or building a powerhouse from scratch, the MSI B550-A PRO guarantees exceptional performance supported by its robust hardware integrations.
Built for Advanced Connectivity
- Featuring cutting-edge connectivity options, the MSI B550-A PRO offers USB 3.2 Gen 2 for rapid data transfer speeds, ensuring every peripheral is functioning at full potential.
- The inclusion of SATA 6Gb/s and M.2 slots elevates storage flexibility, enabling faster read and write speeds for smoother multitasking and minimized loading times.
- Whether you’re a gamer, creative professional, or business user, the MSI B550-A PRO caters to diverse computing needs with unmatched efficiency and reliability.
Sleek Design Meets Enhanced Versatility
- The ATX form factor ensures ease of installation for experienced builders, while HDMI and DisplayPort outputs support high-definition visuals, making this motherboard ideal for multimedia applications.
- Its neutral design seamlessly integrates into most system build environments, with a focus on durability and heat management to provide long-term stability.
- Whether you’re focused on creating a polished gaming rig or a workstation optimized for productivity, the MSI B550-A PRO empowers every project with style and substance.
| Socket | AM4 |
| Chipset | AMD® B550 Chipset |
| Memory Channel | Dual |
| DIMM Slots | 4 |
| Max Memory (GB) | 128 |
| PCI-E x16 | 2 |
| PCI-E Gen | Gen4 / Gen3 |
| PCI-E x1 | 2 |
| SATAIII | 6 |
| M.2 Slot | 2 |
| RAID | 0/1/10 |
| TPM (header) | 1 |
| USB 3.2 ports (Front) | 1(Gen 1, Type C), 2(Gen 1, Type A) |
| USB 3.2 ports (Rear) | 1(Gen 2, Type C), 1(Gen 2, Type A), 2(Gen 1, Type A) |
| USB 2.0 ports (Front) | 4 |
| USB 2.0 ports (Rear) | 4 |
| Serial ports(Front) | 1 |
| Audio ports (Rear) | Realtek® ALC892/ALC897 Codec |
| DisplayPort | 1 |
| HDMI | 1 |
| DirectX | 12 |
| CrossFire | Y |
| CPU Support | Support for Windows® 10 64-bit |
| Form Factor | ATX |














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