| Basic Information | ||
| Supported CPU | Supports AMD Ryzen 9000/ 8000/ 7000 Series Desktop Processors Socket AM5 |
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| Chipset | AMD B850 | |
| Form Factor | mATX | |
| Audio | Realtek ALC897 7.1-Channel High Definition Audio |
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| Expansion Slots | ||
| PCI | 4x PCI-E x16 slot PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU) PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E3 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E4 Gen PCIe 4.0 supports up to x4 (From Chipset) PCI_E1 slot • Supports PCIe 5.0 x16 (For Ryzen™ 9000/ 7000 Series processors) • Supports PCIe 4.0 x8 (For Ryzen™ 8700/ 8600/ 8400 Series processors) • Supports PCIe 4.0 x4 (For Ryzen™ 8500/ 8300 Series processor) |
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| M.2 Socket | 2x M.2 M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices M2_1 slot • Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors) • Supports up to PCIe 4.0 x4 (For Ryzen™ 8000 Series processors) M2_2 slot • Supports up to PCIe 4.0 x4 • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors) |
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| Memory | ||
| Maximum Memory | 256GB | |
| Slots | 4x UDIMM | |
| Supported Memory | Memory Support DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s Ryzen™ 9000 Series Processors max. overclocking frequency: • 1DPC 1R Max speed up to 8200+ MT/s • 1DPC 2R Max speed up to 6400+ MT/s • 2DPC 1R Max speed up to 6400+ MT/s • 2DPC 2R Max speed up to 6000+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPOTM Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only* |
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| Type | DDR5 | |
| Graphics | ||
| Graphics | 1x HDMI Support HDMITM 2.1, maximum resolution of 4K 60Hz 1x DisplayPort Support DisplayPort 1.4, maximum resolution of 4K 60Hz |
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| Connector & Ports | ||
| HDMI | 1x HDMI Support HDMITM 2.1, maximum resolution of 4K 60Hz |
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| USB (s) | 4x USB 2.0 (Front) 3x USB 5Gbps Type A (Rear) 2x USB 5Gbps Type A (Front) 3x USB 10Gbps Type A (Rear) 2x USB 10Gbps Type C (Rear) 1x USB 10Gbps Type C (Front) |
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| LAN Port (s) | Realtek 8126 5G LAN | |
| Supported Storage | 2x M.2 M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices 4x SATA 6G M2_1 slot • Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors) • Supports up to PCIe 4.0 x4 (For Ryzen™ 8000 Series processors) M2_2 slot • Supports up to PCIe 4.0 x4 • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors) |
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| RAID | Supports RAID 0 and RAID 1 for M.2 NVMe storage devices Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices |
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| Audio | 1x Front Audio (JAUD) | |
| Internal I/O Ports | 1x Power Connector(ATX_PWR) 2x Power Connector(CPU_PWR) 1x Power Connector(PCIE_PWR 8pin) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 3x System Fan 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 1x Com Port (JCOM) 1x Tuning Controller connector(JDASH) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0) 4x USB 2.0 ports 2x USB 5Gbps Type A ports 1x USB 10Gbps Type C ports |
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| Display Port (s) | 1x DisplayPort Support DisplayPort 1.4, maximum resolution of 4K 60Hz |
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| TPM (Trusted Platform Module ) | 1x TPM pin header(Support TPM 2.0) | |
| Wireless Communication module | Wi-Fi 7 The Wireless module is pre-installed in the M.2 (Key-E) slot Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (160MHz) up to 2.9Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax/ be Supports Bluetooth 5.4, MLO, 4KQAM |
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| Others | ||
| Special Features | 4x EZ Debug LED 1x EZ Memory Detection LED |
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| Warranty Information | ||
| Warranty | 3 Year | |
The MSI PRO B850M-A WIFI PZ is a cutting-edge micro-ATX motherboard that brings a revolution to mainstream PC building. Designed for the AMD AM5 socket, it fully supports AMD Ryzen 9000, 8000, and 7000 series processors. What sets this "PZ" (Project Zero) edition apart is its innovative back-connect design, which relocates the vast majority of cable connectors—including power, fans, and storage—to the reverse side of the PCB, enabling an ultra-clean, cable-free front aesthetic.
To ensure absolute stability for high-core-count Ryzen processors, the motherboard features a robust Duet Rail Power System (DRPS) digital VRM architecture. It is heavily armored with extended, premium heatsinks over the VRM and chipset to maintain low temperatures under sustained workloads. Additionally, MSI’s M.2 Shield Frozr protects high-speed solid-state drives from thermal throttling, ensuring peak read and write velocities.
The PRO B850M-A WIFI PZ embraces the future with quad-DIMM DDR5 memory slots featuring Memory Boost technology for effortless RAM overclocking. Storage performance is spearheaded by lightning-fast PCIe Gen 5 and Gen 4 M.2 slots, perfect for massive data handling and rapid game load times. For graphics, a reinforced PCIe Steel Armor slot prevents heavy modern GPUs from sagging or damaging the board.
Equipped with cutting-edge Wi-Fi 7 and Bluetooth, this motherboard offers next-generation wireless speeds, lower latency, and incredible stability. Complementing the wireless hardware is a high-speed 2.5G LAN port for seamless wired networking. The rear I/O is packed with premium connectivity, including USB 3.2 Gen 2 Type-C ports, HDMI, and DisplayPort outputs, making it a highly capable, future-proof core for modern workstation or gaming setups.
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