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Product description

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-CSM provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features.

Product features

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.
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.
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.
DDR5 performance enhancement
Comprehensive memory tuning options are the cornerstone of PRIME motherboards. With the PRIME B650M-A II-CSM, 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.
ASUS OptiMem II
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.
PCIe 5.0 M.2 support
PRIME B650M-A II offers a total of two M.2 slots, the first one supports data-transfer speeds of up to 128 Gbps via PCIe 5.0, enabling quicker boot-up and app load times with OS or application drives.
PCIe 4.0 slot
Prime B650 motherboards offer PCIe 4.0 Slot connectivity for the latest GPUs. The wide bandwidth and superfast transmission speeds allow you to create feature-rich builds that can handle high loads effortlessly.
Front USB Type-C
A full complement of USB ports support high-end rigs loaded with peripherals, including a front-panel USB 3.2 Gen 1 Type-C connector that provides data transfer speeds of up to 5Gbps.
Realtek 2.5 Gb Ethernet
Realtek 2.5 Gb Ethernet reduces CPU overhead and offers exceptionally high TCP and UDP throughput for faster, smoother data transfers.

General

Brand

ASUS

Manufacturer

ASUS

Model

PRIME B650M-A II-CSM

Packaged Quantity

Product Line

ASUS

Audio Output

Type

Sound card

Dimensions & Weight

Depth

24.4 cm

Width

24.4 cm

Interfaces

Storage

Serial ATA-600 (RAID) , M.2 socket

USB / FireWire

USB 3.2 Gen 1 , USB 3.2 Gen 2 , USB-C 3.2 Gen 1

Mainboard

Chipset Type

AMD B650

Compatible Processors

Ryzen

Form Factor

Micro ATX

Processor Socket

Socket AM5

Supported RAM (Registered or Buffered)

Unbuffered

Supported RAM Integrity Check

Non-ECC , ECC , On-die ECC

Supported RAM Speed

5400 MHz (O.C.) , 5600 MHz (O.C.) , 5800 MHz (O.C.) , 6000 MHz (O.C.) , 4800 MHz , 6200 MHz (O.C.) , 6400 MHz (O.C.) , 5200 MHz , 5000 MHz

Supported RAM Technology

DDR5 SDRAM

Miscellaneous

Pricing Type

ASUS Corporate Stable Model (CSM)

Product Type

Motherboard

Networking

Data Link Protocol

Ethernet , Fast Ethernet , Gigabit Ethernet , 2.5 Gigabit Ethernet

Processor

Installed Qty

Max Supported Qty

RAM

Max Supported Size

128 GB

Service & Support

Type

3-year warranty

Video Output

Type

Graphics adapter (CPU required)