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ASRock

ASRock AMD B850M Pro A WiFi 6E Socket AM5 Ryzen 9000/8000/7000 Series DDR5 8000+ (OC) MHz 256GB Micro ATX Motherboard M.2 SATA3 6.0 Gb/s PCIe 5.0 BIOS Flashback 2.5G LAN

  • Based on 98 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Aug 14 – Aug 28
Order within 18 hours and 10 minutes
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Size: Micro ATX


Style: Pro-A WiFi


Features

  • Compact Micro-ATX Form Factor: Standard 244mm x 244mm dimensions ensure compatibility with most micro-ATX and ATX computer cases
  • Next-Gen AMD Platform: Supports AMD Socket AM5 Ryzen 9000, 8000, and 7000 Series Processors
  • Robust Power Delivery: 8+2+1 phase power design with Dr.MOS for VCore, SOC, and MISC ensures stable performance
  • High-Speed DDR5 Memory: 4 DDR5 DIMM slots support dual-channel configurations and overclocked speeds up to 8000+ (OC)
  • PCIe 5.0 Ready: Includes one PCIe 5.0 x16 slot for next-generation graphics cards
  • Blazing-Fast Storage: Features one Blazing M.2 (PCIe Gen5x4) slot and two Hyper M.2 (PCIe Gen4x4) slots
  • Comprehensive Connectivity: Realtek 2.5G LAN, WiFi 6E, and multiple USB ports including Type-C front and rear
  • User-Friendly Features: BIOS Flashback support for easy updates without CPU installation
  • System Compatibility Note: Verify case clearance for your chosen CPU cooler and graphics card dimensions

Brand: ASRock


CPU Socket: Socket AM5


Compatible Devices: Desktop


RAM Memory Technology: DDR5


Compatible Processors: AMD Ryzen 9000/8000/7000 Series


Chipset Type: AMD B850


Memory Clock Speed: 8000 MHz


Platform: Windows 11


Model Name: B850M PRO-A WIFI


CPU Model: Ryzen 9


Processor Socket: Socket AM5


Compatible Devices: Desktop


RAM Memory Technology: DDR5


Compatible Processors: AMD Ryzen 9000/8000/7000 Series


Chipset Type: AMD B850


Memory Clock Speed: 8000 MHz


Platform: Windows 11


CPU Model: Ryzen 9


Memory Storage Capacity: 256 GB


Ram Memory Maximum Size: 256 GB


Main Power Connector Type: 24-Pin


Graphics Card Interface: Integrated, PCI Express


Memory Slots Available: 4


Number of Ports: 25


System Bus Standard Supported: SATA 3


Total SATA Ports: 4


Total Usb Ports: 17


Number of Ethernet Ports: 1


Total Number of HDMI Ports: 1


Total PCIe Ports: 2


Chipset Family: AMD B850


Brand: ASRock


Model Name: B850M PRO-A WIFI


Model Number: B850M PRO-A WIFI


Manufacturer: ASRock


Global Trade Identification Number: 76


Item Weight: 1000 g


Mfr Part Number: 90-MXBR90-A0UAYAZ


Warranty Description: 3 Years Manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 14 – Aug 28

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.

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Similar Products

Top Amazon Reviews

    • Great value for a compact build
Size: Micro ATX Style: Pro-A WiFi
Review Image by Nonickamet.
The ASRock B850M Pro A WiFi 6E has been a solid motherboard for my AM5 build. Setup was straightforward, BIOS is easy to navigate, and it supports high-speed DDR5 without issues. WiFi 6E performance is stable, and the board provides good connectivity and expansion for an mATX layout. Paired with a modern Ryzen CPU and RTX 5070, everything runs smoothly. Reliable, compatible, and great value for a compact build. ... show more
Reviewed in the United States on November 18, 2025 by Nonickamet.
    • Good motherboard, very good value.
Size: Micro ATX Style: Pro-A WiFi
Very nice. Good value, no problem after about a month use. The Bluetooth range is much better than my previous motherboard, now it covers my whole apartment.
Reviewed in the United States on November 18, 2025 by Haoming
    • Awful experience building and I wish I could have returned it.
Size: Micro ATX Style: Pro-A WiFi
I hated putting this thing on I couldn't get the ram sticks to work in their appropriate slots I returned and bought new ram off their QVL support list still only works with 1 ram stick in a "non-optimal" slot because I crash in any other slot. B1 is the only slot that will boot, but they all get power the I/O Shield not being on was terrible for me and I run it without it completely because I couldn't safely unmount the motherboard to put it in. Flashing the bios was annoying I will not be buying from this brand when I inevitably have to upgrade I will never substitute price for user friendly convenience again. I spent 30 hours messing with this thing before I finally got everything working terrified of trying to mess with settings or overclocking because of how difficult it was to mess with. I would have rather been doordashing for those hours to help pay for a mobo that was easier to use. I couldn't return it because I didn't feel safe unscrewing it from the case same reason I run without an I/O Shield. ... show more
Reviewed in the United States on July 2, 2025 by Anthony Miller
    • Todo bien, cero fallas
Size: Micro ATX Style: Pro-A WiFi
Buen producto, a buen precio
Reviewed in the United States on April 23, 2026 by ALAN ALEGRE
    • Had issues with mine, unlikely to occur again
Size: Micro ATX Style: Pro-A WiFi
This motherboard does the job, but the WiFi chip wasn’t working on install, I had to swap the card with another one. Wouldn’t expect this to be a frequent occurrence.
Reviewed in the United States on April 11, 2026 by Protohex
    • Nice board, easy to setup
Size: Micro ATX Style: Pro-A WiFi
Review Image by Customer 34
Used this in my fiance's computer along with an AMD 9600X cpu and 64gb of G.skill DDR5 ram. It's been running now for 2 months with not a single hitch. She uses it mostly for school and light gaming (WoW). Very nice board, easy to work with.
Reviewed in the United States on May 18, 2025 by Customer 34
    • Good quality product.
Size: Micro ATX Style: Pro-A WiFi
I am very happy with the new part. Easy install and my new setup works great!
Reviewed in the United States on November 7, 2025 by Gina Mora
    • 👌
Size: Micro ATX Style: Pro-A WiFi
3amp fan slots are awesome, make sure to update bios before boot though. Silly mistake I made cost me a few hours a troubleshooting. Would not boot with my CPU without a bios update
Reviewed in the United States on October 24, 2025 by Rylan Sweeney

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