| Basic Information | ||
| Supported CPU | Supports AMD Ryzen 9000/ 8000/ 7000 Series Desktop Processors Socket AM5 |
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| Chipset | AMD B850 | |
| BIOS | Flash BIOS Button | |
| Form Factor | mATX | |
| Audio | Realtek ALC897 7.1-Channel High Definition Audio |
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| Expansion Slots | ||
| PCI | 2x PCI-E x16 slot 1x PCI-E x1 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 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) *Please refer to the manual for M.2 SSD heatsink restrictions. |
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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* * CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility. The DIMM slots on this motherboard only have single-sided latches. |
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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 *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed. |
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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 8126VB 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) *Please refer to the manual for M.2 SSD heatsink restrictions. |
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| RAID | Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices Supports RAID 0 and RAID 1 for M.2 NVMe 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 * 6GHz band support may depend on every country’s regulations, and Wi-Fi 7 will be ready in Windows 11 version 24H2. ** The Bluetooth version may be updated; please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2. |
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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 is a high-performance micro-ATX motherboard engineered for the AMD Socket AM5 platform. Designed to accommodate AMD Ryzen 9000, 8000, and 7000 series processors, this board provides a powerful, reliable foundation for content creators, professionals, and mainstream gamers seeking next-gen capabilities in a compact build.
To unleash the maximum multi-core performance of modern AMD processors, the motherboard features a robust Direct 8+2+1 digital power phase design equipped with 60A Smart Power Stages (SPS). Stability under sustained workloads is guaranteed through an expansive thermal configuration, which includes an extended VRM heatsink, 7W/mK MOSFET thermal pads, and an EZ M.2 Shield Frozr II to protect high-speed NVMe drives from thermal throttling.
Built for speed, the board houses four DDR5 UDIMM slots supporting up to 256GB of dual-channel memory, capable of reaching blisteringly fast overclocked speeds of 8200+ MT/s via AMD EXPO profiles. Graphic intensive workflows are fully supported by a rugged PCIe 5.0 x16 Steel Armor slot. For storage, it features twin M.2 sockets—one running at lightning-fast PCIe 5.0 x4 speeds directly from the CPU, and the other utilizing a reliable PCIe 4.0 interface.
A standout feature of this motherboard is its state-of-the-art networking suite. It comes equipped with an onboard Wi-Fi 7 module operating on the 6GHz spectrum for massive wireless bandwidth and lower latency. For wired connections, a Realtek 5G LAN controller delivers ultra-fast data transmission speeds, completely eliminating network bottlenecks.
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