ASUS Prime B450M-A II AM4 Micro-ATX Motherboard

A rear I/O panel sports two USB 3.2 Gen 2 and four USB 3.2 Gen 1 Type-A ports. Connect a legacy mouse or keyboard using the PS/2 combo port; connect displays via the HDMI, DVI-D, or VGA ports. In addition to a Gigabit Ethernet port and three 3.5mm audio jacks, the rear panel also sports a BIOS flashback button. Internal headers support two USB 3.2 Gen 1 and four USB 2.0 ports on the front panel. Connectors for RGB, a TPM chip, two system fans, S/PDIF output, speakers, and a Clear CMOS are also present. Audio is handled by a Realtek audio codec that supports both 7.1 Surround Sound and 24-bit audio. The ASUS Prime B450M-A II AM4 Micro-ATX Motherboard is compatible with Windows 10 64-bit operating systems, as well as Windows 7 64-bit when using an AMD Ryzen 1st or 2nd Generation processor.

AMD B450 Chipset

This motherboard uses the AMD B450 chipset, and is compatible with 1st, 2nd, and 3rd Gen AMD Ryzen and Athlon CPUs featuring the AM4 socket.

All-Around Energy Efficiency

With the Energy Processing Unit, or EPU, you can take advantage of system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away Mode.

Fan Xpert 2+

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 quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.

Digi+ VRM Control

The Digi+ voltage-regulation module or 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.

Cool to the Core

The Prime B450M II motherboard 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 a thermal pad underneath it improves heat transfer from the MOSFETs for better cooling performance.

Cool 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. Each header can monitor and react to dedicated thermal sensors, while a dedicated integrated circuit provides the fan headers with short circuit and over-temperature protections. Furthermore, each onboard CHA FAN header supports PWM and DC mode.

PCIe 3.0 M.2 with up to 32 Gb/s

Install M.2 drives up to 22110 and get data transfer speeds up to 32 Gb/s via the x4 PCI Express 3.0 interface.

USB 3.2 Gen 2

Doubling the speed of its predecessor, USB 3.2 Gen 2 features a maximum throughput of 10 Gb/s when used with compatible devices and is synonymous with USB 3.1 Gen 2.

Audio Shielding

Separates analog and digital signal domains, significantly reducing multi-lateral interference.

Separate Layers for Left and Right Channels

Ensures minimal crosstalk between audio paths.

Aura Sync

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 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 setup. The software also provides control of settings for ASUS products, including keyboard and mouse preferences.

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.

SafeSlot Core

Featuring a fortified design that`s anchored to the motherboard by a special hook, SafeSlot Core provides improved retention and shearing resistance over standard expansion slots.

Overvoltage Protection

Built-in voltage regulators protect your motherboard from damage caused by unexpected high-level voltages from unstable or inferior power supplies.

DRAM Overcurrent Protection

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

Corrosion-resistant stainless-steel back I/O panels bonded with chromium oxide have a lifespan that`s three times longer than ordinary panels.

LANGuard

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.