Asus PRIME B650M-A AX w/ DDR5-5200, Dual M.2, 7.1 Audio, USB 3.2 Gen2 Ports, WiFi 6, Bluetooth v5.2

MX00123073 PRIME B650M-A AX w/ DDR5-5200, Dual M.2, 7.1 Audio, USB 3.2 Gen2 Ports, WiFi 6, Bluetooth v5.2
MX00123073 PRIME B650M-A AX w/ DDR5-5200, Dual M.2, 7.1 Audio, USB 3.2 Gen2 Ports, WiFi 6, Bluetooth v5.2 MX00123073 PRIME B650M-A AX w/ DDR5-5200, Dual M.2, 7.1 Audio, USB 3.2 Gen2 Ports, WiFi 6, Bluetooth v5.2 MX00123073 PRIME B650M-A AX w/ DDR5-5200, Dual M.2, 7.1 Audio, USB 3.2 Gen2 Ports, WiFi 6, Bluetooth v5.2 MX00123073 PRIME B650M-A AX w/ DDR5-5200, Dual M.2, 7.1 Audio, USB 3.2 Gen2 Ports, WiFi 6, Bluetooth v5.2

Product Info


ASUS Introduces the PRIME B650M-A AX Motherboard

DDR5-5200, PCIe 5.0 M.2 Support, Realtek 2.5Gb Ethernet, Wi-Fi 6, HDMI, DisplayPort & VGA, SATA 6 Gbps, Rear USB 3.2 Gen 2 Type-A ports, Front USB 3.2 Gen 1 Type-C, BIOS FlashBack™, AuraSync™ RGB Lighting

  • Supports AMD Ryzen™ 7000 Series Desktop Processors
  • Supports DDR5 Memory, Dual Channel DDR5 6400+MHz (OC)
  • AMD Socket AM5: Ready for AMD Ryzen™ 7000 Series Processors
  • Next-Gen M.2 Support: Dual NVME PCIe® M.2 slots to high speed SSD storage
  • High-Performance Networking: On-board WiFi 6E (802.11ax), Bluetooth® 5.2, and Intel® 2.5G Ethernet with ASUS LANGuard
  • 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: Triple onboard Addressable Gen 2 headers and an Aura RGB header for RGB LED strips, easily synced with Aura Sync-capable hardware
  • CEC Tier II ready




Comprehensive controls form the foundation of the ASUS PRIME series. The PRIME B650 motherboard packs flexible tools to tune every aspect of your system, enabling performance tweaks to perfectly match the way you work to maximize productivity.

Intelligent Control

  • CPU Performance Boost
    AMD Precision Boost Overdrive(PBO) pushes the CPU current and voltage budget to opportunistically increase performance. By aggressively tuning the PBO parameters, AMD‘s algorithm can leverage the motherboard’s robust power solution to ramp up performance even higher
  • All-Around Energy Efficiency
    The Power Saving function contains several settings can easily optimize power consumption and maximize energy savings. You can enable a CPU power limit, darken Aura lighting, and set the fan profile to a power saving mode. You can also toggle the Power Saver plan that is built into Microsoft Windows
  • Flexible Air- and Liquid-Cooling Controls
    ASUS Fan Xpert 2+ software provides comprehensive control over fans. An Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS
  • Precise Digital Power Control
    The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU for ultimate stability and performance


The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.

  • Advanced Tuning for Serious Tweakers
    An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want
  • Quick and Simple Setup
    EZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings — all to help you get your rig up and running in no time

Intuitive Graphical Fan Control
Fine-tune individual fan settings simply by dragging a curve with the mouse.

Aura On/Off Mode (Stealth)
Easily enable or disable Aura RGB lighting or every onboard LED, for a subdued aesthetic touch.



PRIME B650 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.

VRM Heatsink and Thermal Pad
VRM heatsink and thermal pads improve heat transfer from the MOSFETs and chokes for better cooling performance.

Six-Layer PCB Design
Multiple PCB layers optimize heat management for critical components, providing more headroom to push CPUs beyond stock speeds.

Cooler by Design
Prime B650 series features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS.

Multiple Temperature Sources
Each header can dynamically reference four thermal sensors. Fan Xpert 2+ allows you to map the temperature of supported ASUS graphics cards to optimize cooling for GPU- and CPU-intensive tasks.


The PRIME B650 series is built to handle the high core counts and bandwidth demands of AMD processors. ASUS B650 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible data transfer options.

DDR5 Performance Enhancement
Comprehensive memory tuning options are the cornerstone of PRIME motherboards. With the PRIME B650M-A AX, you can extract all of the potential out of your DDR5 modules.

Whether they're from an extreme-speed kit or an entry-level set that would otherwise be locked. For entry-level modules without EXPO™ memory support, we’ve got you covered.

For those who want to fly past stock DDR5 speeds, the PRIME B650M-A AX is primed and ready for enthusiast-grade kits courtesy of vast AMD Extended Profiles for Overclocking (EXPO™) support. Seasoned veterans can further tweak performance via the extensive array of settings in the UEFI.

Revisions to the motherboard’s trace routing provide the latest processors with unrestricted access to memory bandwidth!

ASUS OptiMem II technology carefully maps memory signal pathways across different PCB layers to reduce vias and adds shielding zones that significantly reduce crosstalk.


Benefits of ASUS OptiMem II:

  • Improved memory stability and compatibility
  • Provides lower memory latencies at equivalent voltages
  • Improved memory frequency margins


The PRIME B650 series adds nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.

Outstanding Audio
Combined onboard features deliver elevated audio. Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.

  • Audio Shielding
    Audio shielding ensures precision analog/digital separation and greatly reduced multi-lateral interference
  • Dedicated Audio PCB Layers
    Separate layers for left and right tracks ensures both channels deliver consistent, equal quality
  • Premium Audio Capacitors
    Provides warm, natural, and immersive sound with exceptional clarity and fidelity


Aura Sync: Outshine the Competition
A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura offers full RGB lighting control with a variety of functional presets for the built-in RGB LEDs as well as strips and devices connected to the onboard RGB headers — and it can all be synced with an ever-growing portfolio of Aura-capable hardware.

Addressable Gen 2 Headers
Three addressable Gen 2 headers are capable of detecting the number of LEDs on second-gen addressable RGB devices, allowing the software to automatically tailor lighting effects to specific devices. The new headers also offer backward-compatibility with existing Aura RGB gear.

Armoury Crate
Within a single intuitive interface, Armoury Crate offers easily customized Aura Sync RGB settings for every compatible device in your arsenal , plus controls for an ever-growing family of ASUS products, including keyboard and mouse preferences. Armoury Crate also integrates product registration and a news feed so that you never miss updates of interest to the ASUS community.

  • Dashboard
  • Aura Sync
  • FAN Xpert 2+
  • Power Saving
  • Drivers & Manual Downloads
  • Account Management


SafeSlot Core+
SafeSlot Core+ is the ASUS-exclusive PCIe slot fortified with a one-piece stainless-steel brace that shields the slot to protect it from damage. The metal cover is tightly secured to the slot with hooks, and the entire assembly is firmly anchored to the PCB with strengthened solder points to provide a secure foundation for heavyweight graphics cards.

  • Strengthened solder points around the PCIe and DIMM pins
  • Metal inserts keep graphics cards properly aligned during installation
  • The metal side-panels feature hooks that firmly clasp the slot body

Q-LED Core
The Q-LED Core display produces light patterns by power LED during the Power-On Self-Test (POST) that can help users troubleshoot potential issues.


BIOS FlashBack™
BIOS FlashBack™ is the simplest and safest (UEFI) BIOS update method. Simply drop the (UEFI) BIOS file onto a FAT32 formatted USB stick, plug it into the USB BIOS FlashBack™ port and press the button. Updates can even be performed without a memory or a CPU installed.

Rear I/O Ports:



Processor Support:

AMD Ryzen™ 7000 Series Desktop Processors For Socket AM5

Operating System Support:

Requires Windows® 11 / 10, 64-bit


Make and Model Asus PRIME B650M-A AX Motherboard
Part Number PRIME B650M-A AX
Operating System Supports Windows® 11 / 10, 64-bit
Chipset AMD B650 Chipset
CPU Support Supports AMD Ryzen™ 7000 Series Desktop Processors For Socket AM5
Memory 4x DDR5 DIMM RAM Sockets, up to 128 GB (4x 32GB) of non-ECC or ECC un-buffered RAM
Support for Stock Clocked DDR5 RAM: DDR-5200 / 5000 / 4800

Support for Overclocked DDR5 RAM: 6400+ / 6200 / 6000 / 5800 / 5600 / 5400

Supports Dual Channel Memory Architecture
Supports AMD EXPO RAM Overclocking
OptiMem II
Expansion Slots 4x PCI-E x16 slots:
1x PCIe 4.0 x16 slot (supports x16 mode)
3x PCIe 4.0 x16 slots (supports x1 mode)
Multiple GPU Mode N/A
Onboard Graphics 1x DisplayPort v1.4 port, up to 8K UHD @ 60Hz
1x HDMI v2.1 port, up to 4K UHD @ 60Hz
1x VGA port
Storage 2x M.2 Connector Slots:
M.2_1 PCIe 5.0 x4 slot (Key M), type 2242/2260/2280
M.2_2 PCIe 4.0 x4 slot (Key M), type 2242/2260/2280/22110
AMD RAID Xpert Technology supports M.2 Storage Device RAID 0, RAID 1 and RAID 10

8x SATA 6Gb/s connectors
AMD RAID Xpert Technology supports SATA RAID 0, RAID 1 and RAID 10.

USB Rear USB Ports:
2x USB 3.2 Gen 2 (10Gbps) Type-A ports
2x USB 3.2 Gen 1 (6Gbps) Type-A ports
4x USB 2.0 (480Mbps) Type-A ports

Front USB Ports:
1x USB 3.2 Gen 1 header supports 1x USB 3.2 Gen 1 (5Gbps) Type-C port
1x USB 3.2 Gen 1 header supports 2x USB 3.2 Gen 1 (5Gbps) Type-A ports
2x USB 2.0 headers support 4x USB 2.0 (480Mbps) Type-A ports

LAN Realtek® LAN Chipset:
1x RJ45 2.5Gb LAN port
Wireless Communication Wi-Fi 6 Wireless Chipset:
IEEE 802.11 a/b/g/n/ac/ax Dual Band (2.4 / 5GHz) w/ 2x2 Antenna Array
Bluetooth Wi-Fi 6 Wireless Chipset:
Bluetooth v5.2
Audio Realtek High Definition Audio CODEC:
- Supports 7.1 Surround Sound*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback

3x Rear 3.5mm Audio jacks
1x S/PDIF Out header

Audio Features:
- Audio Shielding
- Premium Audio Capacitors
- Dedicated Audio PCB Layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output
Back Panel I/O 2x USB 3.2 Gen 2 (10Gbps) Type-A ports
2x USB 3.2 Gen 1 (6Gbps) Type-A ports
4x USB 2.0 (480Mbps) Type-A ports

1x DisplayPort v1.4 port
1x HDMI v2.1 port
1x VGA port

2x Wi-Fi Antenna jacks
1x RJ45 2.5Gb Ethernet port

3x 3.5mm Audio jacks

1x BIOS FlashBack™ button

1x PS/2 Combo Keyboard/Mouse port

Internal I/O Connectors 1x 4-pin CPU Fan header
1x 4-pin CPU OPT Fan header
3x 4-pin Chassis Fan headers

1x 24-pin Main Power connector
1x 8-pin +12V Power connector

2x M.2 slots (Key M)
8x SATA 6Gb/s ports

1x USB 3.2 Gen 1 connector (supports USB Type-C® )
1x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports
2x USB 2.0 headers support 4 additional USB 2.0 ports

1x S/PDIF Out header

3x Addressable Gen 2 headers
1x Aura RGB header

1x Clear CMOS header
1x COM Port header

1x Front Panel Audio header (AAFP)
1x Speaker header

1x SPI TPM header (14-1pin)

1x 10-1 pin System Panel header

- LANGuard
- Overvoltage Protection
- Safeslot Core+
- Stainless-Steel Back I/O

ASUS Q-Design
- Q-LED Core
- Q-Slot

ASUS Thermal Solution
- VRM heatsink design

- BIOS FlashBack™ button
- BIOS FlashBack™ LED

Aura Sync
- Aura RGB header
- Addressable Gen 2 headers
Software Features ASUS Exclusive Software:
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 2+
- Power Saving

AI Suite 3
- TurboV EVO
- PC Cleaner


Norton Anti-virus software (Free Trial version)



- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
BIOS 256 Mb Flash ROM
Form Factor microATX Form Factor
Dimensions (LxW) 244 x 244mm
Weight N/A

Package Contents

  • 2x SATA 6Gb/s cables
  • 1x ASUS Wi-Fi moving antennas
  • 1x I/O Shield
  • 1x Screw Package for M.2 SSD
  • 1x User Guide