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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.
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.
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.
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.
Outstanding Audio
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
FORM FACTOR | Micro ATX |
SOCKET TYPE | Socket AM4 |
COMPATIBLE PROCESSORS | AMD Ryzen 3, 2nd Generation AMD Ryzen™ 3, AMD Ryzen 5, 2nd Generation AMD Ryzen™ 5, AMD Ryzen 7, 2nd Generation AMD Ryzen™ 7, AMD Ryzen Threadripper, AMD Ryzen™ Threadripper™: The Second Generation |
CHIPSET | AMD B450 |
MEMORY STANDARD | Supported memory types: DDR4-SDRAM Supported memory clock speeds: 2133,2400,2666,2800,2933,3000,3200 MHz |
MEMORY SLOTS | 2 |
MAXIMUM INTERNAL MEMORY | 64GB |
PORTS | 3 x USB3.2 Gen 2 (3.1 Gen 2) Type-A 1 x Ethernet LAN RJ-45 4 x USB3.2 Gen 1 (3.1 Gen 1) Type-A 1 x DVI-D 2 x PS/2 1 x VGA (D-Sub) |
ETHERNET | Gigabit Ethernet LAN |
ONBOARD USB 2.0 | 2 x USB2.0 |
ONBOARD USB 3.1 | 1 x USB3.2 Gen 1 (3.1 Gen 1) |
M.2 SLOTS | M.2,PCI Express 3.0,SATA III |
SATA III CONNECTORS | 4 |
S/PDIF OUT | S/PDIF out connector |
FRONT PANEL AUDIO | Front panel audio connector |
MAIN POWER CONNECTOR | ATX Power connector (24-pin) |
CPU FAN CONNECTOR | CPU fan connector |
CHASSIS FAN CONNECTORS | 2 |
AUDIO CHIPSET | Realtek ALC887-VD2 |
AUDIO CHANNELS | 7.1 channels |
PCI EXPRESS X16 | 2 x PCI Express x16 (Gen 3.x) |
RAID | 0,1,10 |
SUPPORTED OPERATING SYSTEMS | Windows 10 x64,Windows 7 x64 |