AMD B450 (Ryzen AM4) micro ATX motherboard with M.2 support, HDMI/DVI-D/D-Sub, SATA 6 Gbps, 1 Gb Ethernet, USB 3.2 Gen 1 Type-A, BIOS FlashBack™
- Comprehensive cooling: PCH heatsink, and Fan Xpert
- Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 1 Type-A
- 5X Protection III: Multiple hardware safeguards for all-around system protection
- LED illumination: Lighting control for both PCIe slot and audio trace paths
2 x USB 3.2 Gen 1
2 x USB 2.0
2 x USB 3.2 Gen 1
3 x Audio jacks
PCIe 3.0 x16
● ASUS SafeSlot Core
● LED-illuminated design
● Audio Shielding
● Premium Japanese
● Dedicated audio
DIGI+ VRM & EPU
AMD AM4 Socket
AMD B450 Chipset
32Gb/s M.2 support
PCIe 3.0 x4 & SATA mode
4 x SATA 6Gb/s
2 x Front USB 3.2 Gen 1
4 x Front USB 2.0
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.
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.
Flexible Cooling Controls
Fan Xpert 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.
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.
*Specifications and features vary by model, and all images are illustrative. Please refer to specification and gallery pages for full details.
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Cooler by Design
PRIME B450M-K II is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.
- Multiple Temperature Sources
- Smart Protection
- 4-Pin PWM/DC Fan
Each header can monitor and react to dedicated thermal sensors.
Back to Cool to the Core
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.
PCIe 3.0 M.2
(up to 32 Gbps)
Achieve speed with onboard M.2
M.2 Slot supports 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.
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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 interface that let you customize your system to create a unique personal look.
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
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.