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MSI PRO B850M-A WiFi Motherboard, mATX - Supports AMD Ryzen 9000/8000 / 7000 Processors, AM5 - DDR5 Memory Boost (8200+ MT/s OC), PCIe 5.0 x16 & 4.0 x4, M.2 Gen5, Wi-Fi 7, 5G LAN

  • Based on 59 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jul 31
Order within 17 hours and 58 minutes
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Model: PROB850MAWIFI


Features

  • 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

Description

PRO B850M-A WIFI: Business Elegance Designed for efficient and stable performance on the AMD B850 chipset (Ryzen 9000 / 8000 / 7000 supported, AM5), the MSI PRO B850M-A WIFI motherboard includes premium GPU support with a PCIe 5.0 x16 slot, improved DDR5 memory support (8200+ MT/s OC), and extensive M.2 Gen5 storage options (with EZ M.2 Shield Frozr II). To power the latest Ryzen 9000 processors, the PRO B850M-A WIFI is equipped with a Direct 8 phases CPU power (60A, SPS) for the CPU and 8+4-pin CPU power connector, augmented with multiple passive cooling features. MSI B850 PRO motherboards feature durable 6-layer server-grade PCBs with 2oz of thickened copper and all-new Surface Mount Technology (SMT) solder welding for improved signal clarity. Connectivity includes latest Wi-Fi 7 and Bluetooth 5.4 technology, Realtek 5G LAN, USB 10Gbps Type-C, 4K/60Hz display support, and 7.1 HD audio. For professionals looking for an efficient AMD Ryzen 9000 / 8000 / 7000 platform that unites PCIe 5.0 x16 graphics card architecture, improved DDR5 support, and M.2 Gen5 storage options into one elegant design, the MSI PRO B850M-A WIFI motherboard is the perfect choice.

Brand: msi


CPU Socket: Socket AM5


Compatible Devices: Personal Computer


RAM Memory Technology: DDR5


Compatible Processors: Supports AMD Ryzen 9000/7000 Series Desktop Processor


Chipset Type: AMD B850


Memory Clock Speed: 8200 MHz


Platform: Windows 11


Model Name: PROB850MAWIFI


CPU Model: Ryzen 9


Processor Socket: Socket AM5


Compatible Devices: Personal Computer


RAM Memory Technology: DDR5


Compatible Processors: Supports AMD Ryzen 9000/7000 Series Desktop Processor


Chipset Type: AMD B850


Memory Clock Speed: 8200 MHz


Platform: Windows 11


CPU Model: Ryzen 9


Memory Storage Capacity: 256 GB


Ram Memory Maximum Size: 256 GB


Main Power Connector Type: 4+4-pin


Graphics Card Interface: PCI Express


Memory Slots Available: 4


Number of Ports: 10


Total SATA Ports: 4


Total Usb Ports: 8


Number of Ethernet Ports: 1


Total Number of HDMI Ports: 1


Total PCIe Ports: 3


Chipset Family: AMD


Brand: msi


Model Name: PROB850MAWIFI


Model Number: PROB850MAWIFI


Manufacturer: MSI


UPC: 824142425459


Item Weight: 2.9 pounds


Mfr Part Number: PROB850MAWIFI


Warranty Description: 3 Year Manufacturer


Item Dimensions L x W x H: 11.2"L x 11"W x 2.9"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great Value
Model: PROB850MAWIFI
Perfect value motherboard in my opinion. It looks great, isn’t lacking in features, runs the 7800x3d great, which can’t be said for other brands on x3d CPUs.
Reviewed in the United States on April 20, 2026 by Nate C

  • Worth the Extra Money
Model: PROB850MAWIFI
This is a really good motherboard with modern and plentiful rear ports, with 2 USB-C ports, 6 regular USB ports, wifi, 2.5 Gigabit Ethernet, Display Port, and HDMI. Had no issues with it while building my PC, and the tooless mechanism for the NVME made installing storage a breeze. Even though it does cost more than most Micro ATX boards, that's definitely worth it with how long it'll last me for the rest of the AM5 platforms life. A good long term value for money. ... show more
Reviewed in the United States on March 25, 2026 by Luna

  • No visible wires, great back connect board No visible wires, great back connect board
Model: PROB850MAWIFI
Great looking and excellent performance from a great brand. Perfect board for my build.
Reviewed in the United States on April 5, 2026 Reviewed in the United States on April 5, 2026 by Mick B

  • A little too good.
Model: PROB850MAWIFI
Has everything I need. Perfect size. And future proofed
Reviewed in the United States on January 10, 2026 by Nixon W.

  • good MB, BAD DELIVERY
Model: PROB850MAWIFI
product arrive with a dent on the back panel
Reviewed in the United States on October 31, 2025 by Isaac Rodriguez

  • Gaming and Streaming go for it!
Model: PROB850MAWIFI
Motherboard is good Quality: 8/10 Ports: Enough for most uses! Wifi: Good quality !! man Wifi 7 haha Before you turn on make sure to update bios Support Gen 5 after test what I could say performance worth price!
Reviewed in the United States on February 23, 2026 by Alae Bouchlih

  • Very solid MATX mobo
Model: PROB850MAWIFI
Had it for around a month now, no problems so far. I like the abundance of usb 3 on the io, and it looks great in a white pc. The toolless m.2 installation was kind of strange as I've never encountered it before, but I figured it out. Overall, great motherboard, good stability, great features, looks clean. ... show more
Reviewed in the United States on August 5, 2025 by Brandon Kim

  • Works as should
Model: PROB850MAWIFI
Flawless so far
Reviewed in the United States on April 30, 2026 by Ethan Smiley

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