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ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen 7000-series processors. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, PRIME B650M-A II provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. 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. 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. 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. Prime B650 series features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS. Each header can dynamically reference three 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. Comprehensive memory tuning options are the cornerstone of PRIME motherboards. With the PRIME B650M-A II, 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.

CPU
  • AMD Socket AM5 for AMD Ryzen 7000 Series Desktop Processors
(Refer to www.asus.com for CPU support list.)
Chipset
  • AMD B650
Memory
  • 4 x DIMM, Max. 128GB, DDR5 6400+(OC) / 6200(OC) / 6000(OC) / 5800(OC) / 5600(OC) / 5400(OC) / 5200 / 5000 / 4800 ECC and Non-ECC, Un-buffered Memory
  • Dual Channel Memory Architecture
  • Supports AMD EXTended Profiles for Overclocking (EXPO)
  • OptiMem II
    * Supported memory types, data rate(Speed), and number of DRAM module vary depending on the CPU and memory configuration, for more information refer to www.asus.com for memory support list.
    * Non-ECC, Un-buffered DDR5 Memory supports On-Die ECC function.
Onboard Graphics

Integrated Graphics Processor:

  • 1 x DisplayPort
    * Supports max. 8K@60Hz as specified in DisplayPort 1.4
  • 1 x VGA port
  • 1 x HDMI port
    * Supports 4K@60Hz as specified in HDMI 2.1.

(Graphics specifications may vary depending on CPU support.)

Audio

Realtek 7.1 Surround Sound High Definition Audio CODEC

  • Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
  • Supports up to 24-Bit/192 kHz playback
    * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
  • Audio Features
    Audio Shielding
    Premium audio capacitors
    Dedicated audio PCB layers
LAN
  • 1 x Realtek 2.5Gb Ethernet
Wireless Communication Module

None

Expansion Slots

CPU:

  • 1 x PCIe 4.0 x16 slot (supports x16 mode)

Chipset:

  • 2 x PCIe 4.0 x16 slots (support x1 mode)
Multi-Graphics Technology
  • N/A
Storage Interface

Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports

CPU:

  • M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode)

Chipset:

  • M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
  • 4 x SATA 6Gb/s ports

AMD RAID Xpert Technology supports both NVMe RAID 0/1/10 and SATA RAID 0/1/10.

USB

Rear USB (Total 8 ports)

  • 2 x USB 3.2 Gen 2 ports (2 x Type-A)
  • 2 x USB 3.2 Gen 1 ports (2 x Type-A)
  • 4 x USB 2.0 ports (4 x Type-A)

Front USB (Total 7 ports)

  • 1 x USB 3.2 Gen 1 connector (supports USB Type-C)
  • 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports
  • 2 x USB 2.0 headers support 4 additional USB 2.0 ports
Internal I/O Connectors

Fan and Cooling related

  • 1 x 4-pin CPU Fan header
  • 1 x 4-pin CPU OPT Fan header
  • 3 x 4-pin Chassis Fan headers

Power related

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

Storage related

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

USB

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

Miscellaneous

  • 3 x Addressable Gen 2 headers
  • 1 x Aura RGB header
  • 1 x Clear CMOS header
  • 1 x COM Port header
  • 1 x Front Panel Audio header (AAFP)
  • 1 x S/PDIF Out header
  • 1 x Speaker header
  • 1 x SPI TPM header (14-1pin)
  • 1 x 10-1 pin System Panel header
Back Panel Connectors
  • 2 x USB 3.2 Gen 2 ports (2 x Type-A)
  • 2 x USB 3.2 Gen 1 ports (2 x Type-A)
  • 4 x USB 2.0 ports (4 x Type-A)
  • 1 x DisplayPort
  • 1 x VGA port
  • 1 x HDMI port
  • 1 x Realtek 2.5Gb Ethernet port
  • 3 x Audio jacks
  • 1 x BIOS FlashBack button
  • 1 x PS/2 Keyboard/Mouse combo port
I/O Controller
  • Not Specified
H/W Monitoring
  • Voltage detection
  • Temperature detection
  • Fan speed detection
  • Water cooling flow rate detection
  • Fan fail warning
  • Fan speed control
    * Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install.
BIOS
  • 256 Mb Flash ROM, UEFI AMI BIOS
Unique Features

ASUS 5X PROTECTION III

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

ASUS Q-Design

  • Q-DIMM
  • Q-LED Core
  • Q-Slot

ASUS Thermal Solution

  • VRM heatsink design

ASUS EZ DIY

  • BIOS FlashBack button
  • BIOS FlashBack LED

Aura Sync

  • Aura RGB header
  • Addressable Gen 2 headers
Bundled Software

Armoury Crate

  • Aura Creator
  • Aura Sync
  • Fan Xpert 2+
  • Power Saving

AI Suite 3

  • TurboV EVO
  • DIGI+ VRM
  • PC Cleaner

ASUS CPU-Z

MyAsus

Norton Anti-virus software (Free Trial version)

WinRAR

UEFI BIOS

ASUS EZ DIY

  • ASUS CrashFree BIOS 3
  • ASUS EZ Flash 3
  • ASUS UEFI BIOS EZ Mode
Operating System
  • Support for Windows 10 64-bit / Windows 11 64-bit
Form Factor
  • Micro ATX Form Factor, 24.4cm x 24.4cm

Manufacturer
Manufacturer's WebsiteLink *
Product WebsiteLink *
Warranty Information
Warranty Duration3 Years
* These links will redirect to an external website which may be governed by its own privacy policy. We do not share customer information with external sites outside of what's lined out in our Privacy Policy.

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ASUS PRIME B650M-A II, AMD B650 Chipset, Socket AM5, Micro ATX Desktop Motherboard

  • Product Code: 90MB1EH0-M0EAY0
  • Availability: Out Of Stock leadtimeTooltip Lead Times:
    • In Stock with Progenix: Ready for collection/dispatch once payment clears
    • In Stock with Supplier: 1-3 working days until dispatched or ready for collection
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