5th gen Ryzen CPUs will require a BIOS update to work
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.
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.
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.
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.
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.
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 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™ 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.
DDR4 (Dual Channel)
4 x DIMM
Integrated Graphics in the 2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics/ Athlon with Radeon Vega Graphics
1 x VGA
1 x DVI-D
1 x HDMI
1 x PCIe 3.0 x16
2 x PCIe 2.0 x1
6 x SATA III
1 x M.2 (2242/2260/2280/22110) - SATA & PCIe
*PCIe mode not supported with Athlon CPUs
RAID 0, 1, 10
Realtek 7.1-Channel High Definition Audio CODEC
USB Ports Supported
2 x USB 3.1 Gen2 Type-A (at back)
6 x USB 3.1 Gen1 (4 at back, 2 at mid-board)
4 x USB 2.0 (at mid-board)
Back Panel I/O Ports
1 x PS/2 keyboard/mouse
1 x DVI-D
1 x D-Sub
1 x HDMI
1 x LAN (RJ45)
2 x USB 3.2 Gen2 Type-A
4 x USB 3.2 Gen1
3 x Audio jack(s
1 x BIOS FlashBack Button
Internal I/O Connectors
1 x CPU Fan
2 x Chassis Fan
1 x USB 3.2 Gen1
2 x USB 2.0
1 x M.2 Socket 3 with M key
1 x SPI TPM
1 x COM port
6 x SATA 6Gb/s
1 x S/PDIF out
1 x 24-pin EATX
1 x 8-pin ATX 12V
1 x Front audio
1 x System panel
1 x Clear CMOS jumper
1 x COM port
1 x Speaker
1 x RGB Header
2 x SATA 6Gb/s cables
1 x M.2 Screw Package
1 x Supporting DVD
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