Introducing the MSI PRO B850M-A WIFI PZ AM5 DDR5 Motherboard MATX — a refined balance of professional-grade performance, forward-looking connectivity, and clean, modern aesthetics. Crafted by MSI and engineered for the AMD AM5 platform, this micro ATX board is built to unlock the full potential of Ryzen™ 9000 series processors while delivering a polished look that complements white- and pearl-toned systems. With a smart back-connect layout, premium networking, next-generation storage and memory support, and robust expansion options in a compact 243.84mm x 243.84mm footprint, it’s an ideal foundation for workstation builds, content creation rigs, or high-performance compact gaming systems.
Benefits
- Future-ready platform: Designed for the latest AMD B850 chipset and AM5 socket, the board supports Ryzen™ 9000 series CPUs and modern high-speed components so your system remains competitive as software and workflows evolve.
- Extreme connectivity: Wi-Fi 7 with MSI’s EZ Antenna and a dedicated Realtek® 8126 5G LAN deliver ultra-low latency, high-throughput networking — ideal for cloud collaboration, large file transfers, and online gaming.
- Clean, professional aesthetics: A silver-white color scheme and innovative back-connect design reduce visible cables for a tidy, showcase-ready interior that pairs beautifully with minimalist and white-themed builds.
- Compact without compromise: The Micro ATX form factor packs enterprise-level features — high memory capacity, PCIe expansion, M.2 and SATA storage — into a small board that fits compact cases without sacrificing capability.
- Versatile storage and expansion: Dual M.2 slots, four SATA 6G ports, and multiple PCIe x16 slots provide flexibility for fast NVMe drives, large-capacity SATA arrays, GPUs, and specialized expansion cards.
- Feature: Next-generation networking — Equipped with Wi-Fi 7 (with MSI EZ Antenna) and Realtek® 8126 5G LAN, the PRO B850M-A WIFI PZ ensures blazing-fast wireless and wired connectivity for latency-sensitive applications, seamless streaming, and reliable remote work or multiplayer gaming experiences.
- Feature: Cutting-edge CPU and PCIe support — Built on the AMD B850 chipset with an AM5 socket, this board is ready for Ryzen™ 9000 processors and supports PCIe 5.0 M.2 storage, giving you high bandwidth for next-gen NVMe drives and future-proof expansion.
- Feature: High-performance DDR5 memory support — Four DDR5 slots support up to 256GB of system memory and speeds from JEDEC standard up to DDR5 8200 (OC), enabling faster multitasking, rendering, and complex data workloads for professionals and creators.
- Feature: Flexible storage and RAID options — Two M.2 slots and four SATA 6G ports let you mix NVMe and SATA devices for both performance and capacity. Built-in RAID support (RAID 0/1 for M.2 NVMe, RAID 0/1/10 for SATA) offers options for speed, redundancy, and custom storage setups.
- Feature: Practical design and I/O convenience — The silver-white finish and back-connect design simplify cable routing for a clean build aesthetic, while features like supplemental PCIe power, 4x PCIe x16 expansion slots, onboard integrated graphics support (with compatible CPUs), USB 3.2 Gen2 Type-C and Type-A ports, and Realtek® ALC897 audio make daily use, upgrades, and peripheral connectivity effortless.
Key features
Summary
The MSI PRO B850M-A WIFI PZ AM5 DDR5 Motherboard MATX is a thoughtfully engineered platform that merges professional performance with refined design. Whether you’re building a compact workstation, a high-performance home office system, or a clean, visually striking gaming rig, this board delivers the connectivity, memory capacity, storage flexibility, and expansion options to meet demanding workflows. With next-gen networking, PCIe 5.0-ready storage, four DDR5 slots supporting up to 256GB, and a layout that prioritizes both function and appearance, the PRO B850M-A WIFI PZ gives builders the tools to create a powerful, tidy, and future-ready PC.
| Manufacturer | MSI |
|---|---|
| Manufacturer Part | PROB850MAWIFIPZ |
| UPC | 824142441527 |
| MB Chipset | AMD B850 |
| MB Socket | AM5 socket |
| Memory Slot | 4 x DDR5 |
| Memory Support | DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s |
| Maximum memory | 256GB |
| Integrated Graphic | Yes |
| Expansion Slot | 4x PCI-E x16 slot |
| Storage interface | 2x M.2, 4x SATA 6G |
| Raid Support | RAID 0 and RAID 1 for M.2 NVMe, RAID 0, RAID 1, and RAID 10 for SATA |
| Lan | Realtek® 8126 5G LAN |
| WiFi | Yes |
| Onboard Audio | Realtek® ALC897 |
| USB Type | 3.2 Gen 2 Type-c, 3.2 Gen 2 Type-A |
| Form factor | Micro ATX |
| Form size | 243.84mmx243.84mm |
| Manufacturer Warranty | Limited 3 Years |







