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ASUS Prime B650M-A AX II AMD B650 AM5 Ryzen™ Desktop 9000 8000 & 7000 Micro-ATX mATX Motherboard, DDR5, PCIe 5.0 M.2, 2.5Gb LAN, Wi-Fi 6, DisplayPort, HDMI®, USB 3.2, USB 3.2 Type-C®, BIOS Flashback™
ASUS

Prime B650M-A AX II AMD B650 AM5 Ryzen™ Desktop 9000 8000 & 7000 Micro-ATX mATX Motherboard, DDR5, PCIe 5.0 M.2, 2.5Gb LAN, Wi-Fi 6, DisplayPort, HDMI®, USB 3.2, USB 3.2 Type-C®, BIOS Flashback™

By SpecPicks Editorial · Verified 2026-07-23

$165.65
Buy on Amazon — $165.65 Compare to similar motherboards

*Price sourced from Amazon.com. Last updated 2026-07-23. Price and availability subject to change.

Bottom line: The Prime B650M-A AX II AMD B650 AM5 Ryzen™ Desktop 9000 8000 & 7000 Micro-ATX mATX Motherboard, DDR5, PCIe 5.0 M.2, 2.5Gb LAN, Wi-Fi 6, DisplayPort, HDMI®, USB 3.2, USB 3.2 Type-C®, BIOS Flashback™ is a niche pick — read recent reviews before buying in the motherboards category, priced around $165.65. Read recent reviews carefully before committing.

ASUS PRIME B650M-A AX II ASUS Prime series motherboards expertly engineered to unleash the full potential of AMD Ryzen 9000*, 8000*, 7000 series processors. Boasting robust power design, comprehensive cooling solutions and intelligent tuning, PRIME B650-PLUS provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features.

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SpecPicks Verdict

SpecPicks classifies ASUS Prime B650M-A AX II AMD B650 AM5 Ryzen™ Desktop 9000 8000 &… as a niche pick — read recent reviews before buying in the motherboards category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. ASUS's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ AM5 Socket: Ready for AMD Ryzen Desktop 9000*, 8000*, and 7000 Series Processors
  • ✓ Backed by ASUS's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • AM5 Socket: Ready for AMD Ryzen Desktop 9000*, 8000*, and 7000 Series Processors
  • *BIOS Update maybe required when used with AMD Ryzen Desktop 9000 and 8000 Series CPU Processors
  • Ultrafast Connectivity: M.2 PCIe 5.0, Realtek 2.5Gb Ethernet, USB 3.2 Gen 2 ports, front USB 3.2 Gen 1 Type-C
  • ASUS OptiMem II: Careful routing of traces and vias, plus ground layer optimizations to preserve signal integrity for improved memory overclocking
  • Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2+
  • Aura Sync RGB Lighting: Onboard Addressable Gen 2 headers and Aura RGB header for RGB LED strips, easily synced with Aura Sync-capable hardware

Full Specifications

BrandASUS
PlatformWindows
AM5 SocketReady for AMD Ryzen Desktop 9000*, 8000*, and 7000 Series Processors
CPU SocketSocket AM5
Model NamePRIME B650M-A AX II
Chipset TypeAMD B650
ASUS OptiMem IICareful routing of traces and vias, plus ground layer optimizations to preserve signal integrity for improved memory overclocking
Compatible DevicesPersonal Computer
Memory Clock Speed6400 MHz
Compatible ProcessorsAMD 1st Gerenration Ryzen
Comprehensive CoolingVRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2+
RAM Memory TechnologyDDR5
Aura Sync RGB LightingOnboard Addressable Gen 2 headers and Aura RGB header for RGB LED strips, easily synced with Aura Sync-capable hardware
Ultrafast ConnectivityM.2 PCIe 5.0, Realtek 2.5Gb Ethernet, USB 3.2 Gen 2 ports, front USB 3.2 Gen 1 Type-C

Ready to buy?

ASUS Prime B650M-A AX II AMD B650 AM5 Ryzen™ Desktop 9000 8000 & 7000 Micro-ATX mATX Motherboard, DDR5, PCIe 5.0 M.2, 2.5Gb LAN, Wi-Fi 6, DisplayPort, HDMI®, USB 3.2, USB 3.2 Type-C®, BIOS Flashback™ is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-07-23. Price and availability subject to change.

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ASUS Prime B650M-A AX II AMD B650 AM5 Ryzen™ Desktop 9000 8000 & 7000 Micro-ATX mATX Motherboard, DDR5, PCIe 5.0 M.2, 2.5Gb LAN, Wi-Fi 6, DisplayPort, HDMI®, USB 3.2, USB 3.2 Type-C®, BIOS Flashback™
$165.65
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