PRIME B650EM-A
AMD B650 Micro-ATX motherboard, DDR5, PCIe 5.0 Ready, three M.2 slots, Realtek 2.5Gb Ethernet, 2 x DisplayPort, HDMI™, front USB 5Gbps Type-C® support, Bioses FlashBack™, Aura Sync
  • Ready for Advanced AI PC: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
  • AM5 Socket for AMD Ryzen™ Desktop Processors
  • Ultrafast Connectivity: PCIe 5.0 x16 slot, PCIe 5.0 M.2 slot, Realtek 2.5Gb Ethernet, rear USB 10Gbps Type-A ports, front USB 5Gbps Type-C® support
  • Comprehensive Cooling: VRM and M.2 heatsinks, PCH heatsink, hybrid fan headers and Fan Xpert 2+
  • Unmatched Personalization: Three Addressable RGB Gen 2 headers, all configurable with ASUS-exclusive Aura Sync RGB lighting
PRIME B650EM-A
kv_background_light kv_background_light kv_background_dark PRIME B650EM-A provides users and PC DIY builders a range of performance tuning options via intuitive software and firmware features.

B650EM-A



ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen processors. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, PRIME B650EM-A provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. This platform delivers the power and connectivity that advanced AI PC applications demand.


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  • Gen 5 Slot for graphics cards and M.2 storage

    Gen 5 Slot for graphics cards and M.2 storage

  • DDR5 Support

    DDR5 Support

  • USB 5Gbps Type-C®

    USB 5Gbps Type-C®

  • 2.5 Gb Ethernet

    2.5 Gb Ethernet

  • Intelligent Control

    Intelligent Control

  • Customization

    Customization

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All specs of the PRIME B650EM-A motherboard All specs of the PRIME B650EM-A motherboard
  • HDMI™ port
  • 2 x DisplayPort
  • Bioses FlashBack™ button
  • 4 x USB 2.0 ports (Type-A) 
  • 2 x USB 5Gbps ports (Type-A)
  • Realtek 2.5Gb Ethernet
  • 2 x USB 10Gbps ports (Type-A)
  • 3 x Audio jacks
  • Expansion Slots
    • 1 x PCIe 5.0 x16
     (supports @x16 mode)
     SafeSlot
    • 1 x PCIe 4.0 x16
     (supports @x1 mode)
  • 1 x Addressable RGB Gen 2 header
  • 2 x Addressable RGB Gen 2 headers
  • 4 x DIMM slots
    DDR5 support, Dual channel, AEMP
  • AM5 Socket for AMD Ryzen™ Desktop Processors
  • 2 x Front USB 5Gbps
  • 1 x Front USB 5Gbps Type-C®
  • AMD B650 Chipset
  • 3 x M.2 slots
    • M.2_1 2280 (PCIe 5.0 x4 mode)
    • M.2_2 2280 (PCIe 4.0 x4 mode)
    • M.2_3 2242/2260/2280
     (PCIe 4.0 x4 mode)
  • 4 x SATA 6Gb/s ports
  • 4 x Front USB 2.0

FLEXIBILITY



Comprehensive controls form the foundation of the ASUS PRIME series. The PRIME B650E motherboard packs flexible tools to tune every aspect of your system, enabling performance tweaks to perfectly match the way you work to maximize productivity.
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Intelligent Control


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PBO Enhancement UI setting. UI of FAN Xpert 2+ for cooling controls Digi+ VRM feature icon

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.

Flexible Air- and Liquid-Cooling Controls

ASUS Fan Xpert 2+ software provides comprehensive control over fans and all-in-one (AiO) coolers. Whether cooling with air or water, 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, AiO coolers can also be controlled via the UEFI Bioses.

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.

UEFI Bioses



The renowned ASUS UEFI Bioses 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.
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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.

Search Function


Quickly and easily find the option or setting you need.

ASUS User Profile


Port configuration settings between different Bioses versions or share them with friends.

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.

COOLING


PRIME B650E 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.

Heatsinks



M.2 Heatsink



The M.2 heatsink can take care of the M.2_1 slot, warding off throttling that can occur with M.2 storage during sustained transfers. The heatsink is held in place by captive screws.
The PRIME B650EM-A motherboard offers M.2 heatsink.

Removable captive screws reduce risk of drops or loss during heatsink removal.

VRM Heatsink and Thermal Pads



VRM heatsink and thermal pads improve heat transfer from the MOSFETs and chokes for better cooling performance.
ASUS B650E motherboard with VRM heatsink image
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Cooler by Design



PRIME B650EM-A features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI Bioses.
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AIO Pump Header icon AIO Pump Header icon

Multiple Temperature Sources



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.

AIO Pump Header



A dedicated PWM/DC header for self-contained water-cooling setups.

Smart Protection



A dedicated integrated circuit protects each fan header from overheating and overcurrent.

4-Pin PWM/DC Fan



These onboard headers support auto-detection of PWM or DC fans.

PERFORMANCE



The PRIME B650E series is built to handle the high core counts and bandwidth demands of AMD processors. ASUS B650E 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.

Robust Power Design



Stable power is essential to extract every last bit of performance out of AMD processors. The PRIME B650EM-A is geared to cater to the demands of these high-core-count CPUs.
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Digital Power Design

PRIME B650EM-A features an 8+2+1 phase power design with discrete MOSFETs, ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use.

Six-Layer PCB Design

Multiple PCB layers optimize heat management for critical components, providing more headroom to push CPUs beyond stock speeds.
The PRIME B650EM-A motherboard features Digital Power Design.
The PRIME B650EM-A motherboard features Six-Layer PCB Design.

Memory

The PRIME B650EM-A motherboard supports ASUS OptiMem II.

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.

Benefits of ASUS OptiMem II:

  • Improved memory stability and compatibility
  • Allows lower memory latencies at equivalent voltages
  • Improved memory frequency margin

Motherboards with OptiMem II technology were tested with Synopsys HSPICE simulation software

The PRIME B650EM-A motherboard supports DDR5.

DDR5 Performance Enhancement


Comprehensive memory tuning options are the cornerstone of B650E motherboards. With the PRIME B650EM-A, 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. Click here to learn more about AEMP. arrow .

For those who want to fly past stock DDR5 speeds, the PRIME B650EM-A 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.
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Storage



PCIe 5.0 M.2 Support



PRIME B650EM-A offers a total of three M.2 slots, the first one supports data-transfer speeds of up to 128Gbps via PCIe 5.0, enabling quicker boot-up and app load times with OS or application drives.


* Actual transmission speeds will be lower than the theoretical maximum speed.

The PRIME B650EM-A motherboard supports PCIe 5.0 M.2 Support.

Connectivity

The PRIME B650EM-A motherboard supports PCIe 5.0 Slot.
The PRIME B650EM-A motherboard features USB 5Gbps Type-C®

PCIe 5.0 Slot

PRIME B650EM-A offers PCIe 5.0 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.

USB 5Gbps Type-C®

A batch of USB ports support high-end rigs loaded with peripherals, including a rear USB Type-C® connector with ultrafast USB 5Gbps for transmission speeds of up to 5Gbps.

Realtek 2.5Gb Ethernet

Realtek 2.5Gb Ethernet reduces CPU overhead and offers exceptionally high TCP and UDP throughput for faster, smoother data transfers.
Lower CPU workload
High TCP and UDP throughput
The PRIME B650EM-A motherboard features Realtek 2.5Gb Ethernet and LanGuard.

LANGuard

ASUS LANGuard is a hardware-level network protection feature that integrates advanced signal-coupling technology and premium anti-EMI surface-mounted capacitors to improve throughput and ensure a more reliable connection.
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CUSTOMIZATION



The PRIME B650E series adds the 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.

Personalization

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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.

Learn More
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Static

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Breathing

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Strobing

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Rainbow

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Color Cycle

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Starry Night

Music Effect icon

Music Effect

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Smart

The PRIME B650EM-A motherboard features Aura Sync.
The PRIME B650EM-A motherboard features addressable RGB Gen 2 headers.

Addressable RGB Gen 2 Headers


Three addressable RGB 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.

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TWO-WAY AI NOISE CANCELATION


This utility leverages a massive deep-learning database to reduce background noise from the microphones and incoming audio, while preserving vocals at the same time. This removes distracting keyboard clatter, mouse clicks and other ambient noises so you can hear and be heard with crystal clarity while gaming or in calls.

500M

Deep-learning database

Audio

Input/output

High

Fidelity

Minimal

Performance Impact
Hear the Difference wave image
AI icon

Hear the Difference

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.

Features ASUS DriverHub

ASUS DriverHub


ASUS DriverHub streamlines the installation and management of ASUS drivers and utilities to keep your hardware up-to-date and performing optimally. This standalone application automatically detects current driver versions and presents available updates in a list view. By default, it supports ASUS motherboards, and users are invited to install ASUS DriverHub after OS installation. Additionally, ASUS DriverHub offers one-click installation and update checks, making it easier for users to keep their systems running smoothly and efficiently.

* Image for reference only.

DIY Friendly

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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.
No CPU Detected
The PRIME B650EM-A motherboard features Q-LED Core. The PRIME B650EM-A motherboard features Q-LED Core.
Fast blinking

4 Hz (0.25s)

No VGA Detected
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Slow blinking

1/2 Hz (2s)

No Boot Device Detected
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Very slow blinking

1/8 Hz (8s)

Installation Completed
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The PRIME B650EM-A motherboard features Bioses FlashBack™.
The PRIME B650EM-A motherboard features SafeSlot. The PRIME B650EM-A motherboard features SafeSlot.

Bioses FlashBack™


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

SafeSlot


PCIe 5.0 is twice as fast as PCIe 4.0. ASUS has adapted our SMT manufacturing for the faster SafeSlot, a reinforced metal sheath that ensures secure card installation and faster data speeds.
SafeSlot image
Overvoltage Protection
Overvoltage Protection

World-class circuit-protecting power design
An exclusive circuit design with built-in voltage regulators to protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.
Stainless-Steel Back I/O
Stainless-Steel Back I/O

3X corrosion-resistance for greater durability
Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that's three times longer than ordinary panels.
Learn more

1000+
Compatible devices and components


The ASUS B650E series provides superior compatibility with thousands of components and our memory support list identifies memory compatibility, giving you more choices for worry-free PC-building experiences.

8000+
Validation hours


Every ASUS motherboard is subjected to more than 8,000 hours of stringent tests, including burn-in, environmental, compatibility, software and safety tests to confirm their durability. ASUS reliability surpasses industry standards, ensuring that every component is designed to function flawlessly in any environment.
Temperature and humidity tests
Temperature and humidity tests
Ensures components withstand extreme conditions.
Thermal measurement tests
Thermal measurement tests
Ensures that the system remains cool and stable under the heaviest loads.
Insertion tests
Insertion tests
Every port and connector is put through repeated installation cycles.
Aging tests
Aging tests
Up to 48-hour aging test ensures reliability.
Power-consumption tests
Power-consumption tests
Checked for world-class energy efficiency.
Temperature and DC margin tests
Temperature and DC margin tests
Ensures that the motherboard is capable of coping with voltages fluctuations caused by varying temperatures.
Thermal-shock tests
Thermal-shock tests
Ensures ability to survive temperature changes during transportation.
Non-operation shock tests
Non-operation shock tests
Built to withstand jolts that may occur during shipping.
Burn-in tests
Burn-in tests
Every component is checked to ensure flawless operation.
Installation tests
Installation tests
Connector placement is double-checked to ensure hassle-free installation.
Drop tests
Drop tests
Drop tests from various heights ensure durability.
Salt and spray tests
Salt and spray tests
Tested for I/O reliability, prolonged lifespan and rust-resistance.
Ryzen 7000 Series Ryzen 7000 Series

Build for the most advanced pc for gaming and creating

When only the fastest will do, ASUS motherboards deliver. With faster dual-channel DDR5 memory support, AMD EXPO™ technology and PCIe® 5.0 support for both graphics and NVMe, you can play the most demanding games and deliver your biggest projects with the revolutionary performance of an ASUS motherboard and AMD Ryzen™ 9000, 8000, and 7000 Series processors.

ASUS Enhanced Memory Profile UI setting

Exclusive AEMP


ASUS Enhanced Memory Profile (AEMP) is an exclusive firmware feature for PMIC-restricted memory modules. AEMP automatically detects the memory chips on your kit and then presents optimized frequency, timing and voltage profiles that you can effortlessly apply to unleash performance.
Product has High-Definition Multimedia Interface.
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  • *Precise specifications and features vary by model . Please refer to the specification page
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