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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
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

Status: ASRock AMD B850M Pro A WiFi 6E Socket AM5 Ryzen…: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

Bottom line: The ASRock AMD B850M Pro A WiFi 6E Socket AM5 Ryzen 9000/8000/7000 Series: PCIe 5.0 x16 slot plus a Gen5x4 Blazing M.2 at entry-level pricing; main trade-off: micro-ATX 244x244mm limits expansion to fewer PCIe slots.

Unavailable on Amazon as of

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: ASRock AMD B850M Pro RS WiFi 6E Socket AM5 Ryzen… — $139.99 on Amazon as of 2026-10-07 10:27 UTC (price may vary).

Similar: ASRock AMD B850 Pro RS WiFi 6E Socket AM5 Ryzen… — $139.99 on Amazon as of 2026-10-07 04:20 UTC (price may vary).

Similar: ASRock AMD B850 Pro A WiFi 6E Socket AM5 Ryzen… — $159.99 on Amazon as of 2026-10-07 04:32 UTC (price may vary).

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ PCIe 5.0 x16 slot plus a Gen5x4 Blazing M.2 at entry-level pricing
  • ✓ Three M.2 slots total: one Gen5x4 and two Gen4x4 Hyper M.2
  • ✓ BIOS Flashback updates for new Ryzen support with no CPU installed
  • ✓ WiFi 6E and Realtek 2.5G LAN both included, no add-in cards needed

Cons

  • ✗ Micro-ATX 244x244mm limits expansion to fewer PCIe slots
  • ✗ DDR5 8000+ speeds are OC-rated, not guaranteed on every kit
  • ✗ Storage listed as SATA3 6.0 Gb/s only, no faster SATA tier
  • ✗ Case clearance for cooler and GPU must be checked before buying

SpecPicks Verdict

SpecPicks scored ASRock AMD B850M Pro A WiFi 6E Socket AM5 Ryzen 9000/8000/7000… using a rating × review-volume × price-fit model applied to published specs and reviews across the motherboards category. ASRock's motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key 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

Full Specifications

BrandASRock
Weight2.5g
PlatformWindows 11
CPU ModelRyzen 9
CPU SocketSocket AM5
Model NameB850M PRO-A WIFI
Chipset TypeAMD B850
ConnectivityUSB, WiFi
Model NumberB850M PRO-A WIFI
Chipset FamilyAMD B850
PCIe 5.0 ReadyIncludes one PCIe 5.0 x16 slot for next-generation graphics cards
Mfr Part Number90-MXBR90-A0UAYAZ
Number of Items1
Number of Ports25
Total Usb Ports17
Processor SocketSocket AM5
Total PCIe Ports2
Total SATA Ports4
Dedicated SupportContact us directly through Amazon for any product questions or assistance
Compatible DevicesDesktop

Ready to buy?

Amazon shows no buyable offer for ASRock AMD B850M Pro A WiFi 6E Socket AM5 Ryzen… at the last check. A similar in-stock product is ASRock AMD B850M Pro RS WiFi 6E Socket AM5 Ryzen…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $139.99

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