Asus Prime B450M-A II Desktop Motherboard – AMD B450 Chipset – Socket AM4 – Micro ATX – Ryzen 3 PRO, Ryzen 5 Pro, Ryzen 7 PRO, Ryzen 3, Ryzen 5, Ryzen 7, Ryzen 9, Athlon Processor Supported – 128 GB DDR4 SDRAM Maximum RAM – UDIMM, DIMM – 4 x Memory Slots – Gigabit Ethernet – HDMI – 6 x SATA Interfaces

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 2 Type-A, BIOS FlashBack™, and Aura Sync RGB lighting support

• 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

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.

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.

VRM Heatsink and Thermal Pads

A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs for better cooling performance.

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 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.

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.

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.