ASUS Prime B450M-A II AMD Socket AM4 microATX Motherboard

SKU: AS90MB15Z0M0

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Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

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TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

ASUS Prime B450M-A II Specifications

  • CPU

    AMD AM4 Socket for 3rd/2nd/1st Gen AMD Ryzen/2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics/Athlon with Radeon Vega Graphics Processors

  • Chipset

    AMD B450

  • Memory

    3rd/2nd/1st Gen AMD Ryzen/ 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics/ Athlon with Radeon Vega Graphics Processors
    4x DIMM, Max. 128GB, DDR4 4400(O.C)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory
    Dual Channel Memory Architecture
    ECC Memory (ECC mode) support varies by CPU

  • Graphic

    Integrated Graphics in the 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics/ Athlon with Radeon Vega Graphics Processors
    1x D-Sub
    1x DVI-D
    1x HDMI 2.0b

  • Expansion Slots

    3rd/2nd/1st Gen AMD Ryzen Processors:
    1x PCIe 3.0 x16 (x16 mode)

    2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics Processors:
    1x PCIe 3.0 x16 (x8 mode)

    AMD Athlon with Radeon Vega Graphics Processors:
    1x PCIe 3.0 x16 (x4 mode)

    AMD B450 chipset:
    2x PCIe 2.0 x1

  • Storage

    Total supports 1 x M.2 slot(s) and 6 x SATA 6Gb/s ports
    3rd/2nd/1st Gen AMD Ryzen/ 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics:
    1x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)

    Athlon with Radeon Vega Graphics Processors:
    1x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA mode)

  • Storage (Contd.)

    3rd/2nd/1st Gen AMD Ryzen/ 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics/ Athlon with Radeon Vega Graphics Processors:
    2x SATA 6Gb/s port(s)
    Support Raid 0, 1, 10

    AMD B450 chipset:
    4x SATA 6Gb/s port(s)
    Support Raid 0, 1, 10

  • LAN

    Realtek RTL8111H
    ASUS LANGuard

  • Audio

    Realtek ALC887/897 7.1-Channel High Definition Audio CODEC:
    Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback

    Audio Feature:
    LED-illuminated design
    Audio Shielding
    Dedicated audio PCB layers
    Premium Japanese audio capacitors

  • USB Ports

    Rear USB Port (Total 6):
    2x USB 3.2 Gen 2 (up to 10Gbps) port(s)(2 x Type-A)
    4x USB 3.2 Gen 1 port(s)(4 x Type-A)

    Front USB Port (Total 6)
    2x USB 3.2 Gen 1 port(s)
    4x USB 2.0 port(s)

  • Software Features

    ASUS Exclusive Software
    Armoury Crate:
    AURA Creator
    AURA Sync

    AI Suite 3:
    Performance and Power Saving Utility

    TurboV EVO
    EPU
    DIGI+ VRM
    Fan Xpert 2+
    PC Cleaner:
    EZ update
    System Information

  • Software Features (Contd.)

    ASUS CPU-Z
    AI Charger
    ASUS EZ Installer
    DAEMON Tools
    Norton Anti-virus software (Free Trial for 60 days)
    WinRAR
    UEFI BIOS
    ASUS EZ DIY:
    ASUS CrashFree BIOS 3
    ASUS EZ Flash 3
    ASUS UEFI BIOS EZ Mode

  • ASUS Special Features

    ASUS 5X PROTECTION III:
    ASUS DIGI+ VRM
    ASUS LANGuard
    ASUS Overvoltage Protection
    ASUS SafeSlot Core
    ASUS Stainless-Steel Back I/O

    ASUS Q-Design:
    ASUS Q-DIMM
    ASUS Q-Slot

  • ASUS Special Features (Contd.)

    ASUS Thermal Solution:
    Aluminum heatsink design

    ASUS EZ DIY:
    BIOS FlashBack button
    BIOS FlashBack LED

    AURA Sync:
    AURA RGB header

    ASUS Lighting Control

  • Back I/O Ports

    1x PS/2 keyboard/mouse combo port(s)
    1x DVI-D
    1x D-Sub
    1x HDMI
    1x LAN (RJ45) port(s)
    2x USB 3.2 Gen 2 (teal blue) (2 x Type-A)
    4x USB 3.2 Gen 1 (blue) Type-A
    3x Audio jack(s)
    1x BIOS FlashBack Button(s)

  • Internal I/O Ports

    1x CPU Fan connector(s) (1 x 4 -pin)
    2x Chassis Fan connector(s) (2 x 4 -pin)
    1x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) (19-pin)
    2x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
    1x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)
    1x SPI TPM header
    1x COM port(s) connector(s)
    6x SATA 6Gb/s connector(s)

  • Internal I/O Ports (Contd.)

    1x S/PDIF out header(s)
    1x 24-pin EATX Power connector(s)
    1x 8-pin ATX 12V Power connector(s)
    1x Front panel audio connector(s) (AAFP)
    1x System panel(s)
    1x Clear CMOS jumper(s)
    1x COM port header
    1x Speaker connector
    1x RGB Header

  • BIOS

    256 Mb Flash ROM, UEFI AMI BIOS

  • Operating System

    Windows 10 64-bit
    Windows 7 64-bit

  • Form Factor

    mATX Form Factor

  • Dimensions

    9.6 x 9.5" (24.4 x 24cm)

  • UPC Code

    192876924990

About ASUS Prime B450M-A II

ASUS Prime B450M II Series motherboards provide the solid foundation needed for your first build, plus flexibility to grow with your ambitions. We've melded all the good stuff that's packed into AMD Ryzen processors with essential ASUS design and engineering, so you benefit from industry-leading technologies - including automated system tuning, comprehensive cooling controls, and immersive onboard audio. When you build with an ASUS Prime B450M II Series motherboard, you build smart, easy and affordably.

Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B450M II motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work - maximizing your productivity.

Intelligent Control

EPU

All-around Energy Efficiency
With the Energy Processing Unit (EPU), you'll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode.

Fan Xpert 2+ - Flexible Cooling Controls
Fan Xpert 2+ software provides comprehensive control over system fans. 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.

Digi+ VRM Control - 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 BIOS
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 Mode - 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 BIOS versions or share them with friends.

EZ Mode - 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.


Cool to the Core
Prime B450M II 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 - VRM Heatsink and Thermal Pads
A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs for better cooling performance.

Cooler by Design
Prime B450M-A II is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert 2+ software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.


Build on a Solid Foundation
Prime B450M II motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.

Storage - PCIe 3.0 M.2 (up to 32 Gbps) Achieve speed with onboard M.2
M.2 Slot supports up to 22110 and data-transfer speed up to 32Gbps via x4 PCI Express 3.0 bandwidth. It's the perfect choice for an operating system or application drive, providing fast access to data.

Connectivity - USB 3.2 Gen 2 Type-A
Numerous USB ports support high-end rigs loaded with peripherals, including two rear-panel USB Type-A connectors with fast USB 3.2 Gen 2 connectivity for compatible cases.


Little Things Make a Big Difference
Prime B450M II 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 unique personal look.

Audio

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

Audio Shielding
Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate Layer for Left and Right Tracks
Ensures minimal crosstalk between audio paths.

Premium Japanese Capacitors
Premium parts provide an immersive sound signature, with exceptional fidelity.

Personalization

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 RGB LED strips connected to the onboard RGB headers. And it can all be synced with an ever-growing portfolio of Aura-capable hardware.

Armoury Crate
Armoury Crate is a new software utility designed to give you centralized control of supported products. From a single intuitive interface, Armoury Crate allows you to easily customize RGB lighting and effects for every compatible device in your arsenal. The software also provides control of settings for ASUS products, including keyboard and mouse preferences. Armoury Crate even features dedicated product registration and highlight to help you stay in touch with the ASUS community.

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 having memory or a CPU installed.

DIY Friendly

SafeSlot Core - Fortified PCIe slot prevents damage
SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, SafeSlot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.

ASUS Prime motherboards have strengthened solder points around both the PCIe and DIMM pins.

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.

DRAM Overcurrent Protection - Short-circuit damage prevention
Onboard resettable fuses prevent overcurrent and short-circuit damage. This extends beyond I/O ports to DRAM to safeguard the lifespan of your system and connected devices.

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.

LANGuard - Pumped-up throughput 2.5X higher surge tolerance
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.

1000+ Compatible devices and components
The Prime B450M II series provides superior compatibility with thousands of components and our Qualified Vendor List (QVL) 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.

ASUS Prime B450M-A II Features

  • Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
  • Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 2 Type-A
  • 5X Protection III: Multiple hardware safeguards for all-around system protection
  • Aura Sync RGB Lighting: Onboard connector for RGB LED strips, easily synced with an ever-growing portfolio of Aura Sync-capable hardware

Key Features

  • Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
  • Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 2 Type-A
  • 5X Protection III: Multiple hardware safeguards for all-around system protection

What's in the box:

  • Prime B450M-A II AMD Socket AM4 microATX Motherboard
  • I/O Shield
  • 2x SATA 6Gb/s Cable
  • M.2 Screw Package
  • Supporting DVD
  • User Manual
  • ASUS 3 Year Limited Warranty