MSI PRO B850M-A WiFi

MSI PRO B850M-A WiFi AM5 DDR5 (8200+ MT/s OC) PCIe 5.0 x16 M.2 Gen5 Wi-Fi 7 5Gb LAN micro ATX

MSI PRO B850M-A WiFi AM5 DDR5 (8200+ MT/s OC) PCIe 5.0 x16 M.2 Gen5 Wi-Fi 7 5Gb LAN micro ATX

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  • ULTRA POWER - SUPPORTS THE LATEST RYZEN 9000 PROCESSORS IN HIGH PERFORMANCE - The PRO B850M-A WIFI employs a Direct 8 phases CPU power (60A, SPS) VRM for the AMD B850 chipset (AM5, Ryzen 9000 / 8000 / 7000) with Core Boost architecture
  • FROZR GUARD - Excellent cooling features such as 7W/mK MOSFET thermal pads, extra choke thermal pads and an Extended Heatsink; Includes chipset heatsink, EZ M.2 Shield Frozr II, a Combo-fan (for pump & system) header (3A)
  • DDR5 MEMORY, PCIe 5.0 x16 SLOTS - 4 x DDR5 DIMM SMT slots enable extreme memory overclocking speeds (1DPC 1R, 8200+ MT/s OC); 1 x PCIe 5.0 x16 SMT slot (128GB/s) with Steel Armor supports cutting-edge graphics cards
  • DOUBLE M.2 CONNECTORS - Storage options include 1 x M.2 Gen5 x4 128Gbps slot and 1 x M.2 Gen4 x4 64Gbps slot; Features EZ M.2 Shield Frozr II to prevent thermal throttling and EZ M.2 Clip II for EZ DIY experience
  • HIGH-SPEED CONNECTIVITY - Network hardware includes a latest Wi-Fi 7 module with Bluetooth 5.4 & 5Gbps LAN; Rear ports include USB 10Gbps Type-C and 7.1 HD Audio with Audio Boost

Specifications Overview

Model PRO B850M-A WIFI
Release Date June 2025

* First availability for purchase, it may not correspond to the actual market launch date.

Socket AM5
Form factor Micro ATX
Chipset AMD B850
Supported Memory DDR5
4800Mhz 6000Mhz 6400Mhz 8200Mhz 8600Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS
** RAM support may also depend on the CPU memory controller
ECC RAM Support No
Audio Chipset ALC897
Audio Channels 8-Channel (7.1) HD Audio with Audio Boost
LAN Chipset Realtek® 8126 5G LAN
SLI Support No
CrossFire Support No
RAID Support No
Back Connect No
Wireless LAN Yes
Wi-Fi Generation 7
PCI-Express x16 Slots 2
PCI-Express x4 Slots 0
PCI-Express x1 Slots 1
SATA 6 Gbps Ports 4
SATA Express Ports 0
M.2 Ports 2
M.2 Devices support
  • 2260 / 2280 - M Key
  • 2260 / 2280 - M Key
RAM Slots 4
Maximum Supported RAM 128 GB
Onboard USB 2.0 0
Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 1
Onboard USB 3.2 Gen 2x2 0


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