ASUS Prime B450M-K II AMD B450 Socket AM4 micro ATX

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.

General

Brand:	Asus
Release date:	October 2020
Package Dimensions:	273 x 263 x 52mm (L x W x T)
Categories:	Computers > Components > Motherboards Promotions
LSN:	XNN-28R-CPD-4
Barcode:	4718017932387
Component For:	PC
Model Number:	90MB1600-M0EAY0

Supported CPU

CPU Socket Type:	Socket AM4
Processor Series:	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

Chipset:	AMD B450
Chipset Family:	AMD

Memory

ECC:	Yes
Maximum Memory Supported:	64 GB
Memory Standard:	DDR4-SDRAM
Slot Type:	DIMM
Supported Clock Speed:	2133 • 2400 • 2666 • 2800 • 2933 • 3000 • 3200
Unbuffered Memory:	Yes

Storage

SATA 6Gb/s:

4

Onboard

Audio Channels:	7.1 channels
Fan Connectors:	2
Front Panel Audio Connectors:	Yes
S/PDIF Out Connector:	Yes
USB Ports:	2

Rear Panel Ports

D-SUB / VGA:	1
DVI-D:	1
Ethernet:	1
Headphone Out:	1
Mic In:	Yes
PS/2:	2
USB 3.0:	1

BIOS

BIOS Memory Size:	128 Mbit
BIOS Type:	UEFI AMI

Bundled Software

Bundled Software:

Armoury Crate • AI Suite 3 • Performance and Power • Saving Utility • TurboV EVO • EPU • DIGI+ VRM • Fan Xpert • PC Cleaner • EZ update • System Information • ASUS CPU-Z • AI Charger • ASUS EZ Installer • DAEMON Tools • Norton Anti-virus software (Free Trial for 60 days) • WinRAR • UEFI BIOS • ASUS EZ DIY • ASUS CrashFree BIOS 3 • ASUS EZ Flash 3 • ASUS UEFI BIOS EZ Mode

Networking

Ethernet / LAN:	Yes
Ethernet Interface Type:	Gigabit Ethernet

Ports

USB 3.0 (3.1 Gen 1) Type-A Ports:	4
USB 3.1 (Gen 2) Type-A Ports:	3

Package Contents

Cables:

SATA

System Requirements

Windows Operating Systems Supported:

Windows 10 x64 • Windows 7 x64

Physical Specification

Form Factor:	micro ATX
Item Depth (mm):	244
Item Height (mm):	259
Item Width (mm):	244
Weight (kg):	0.84

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Review This Product

Best motherboard

Fri, 15 Aug 2025 | Review by: MTHOKOZISI M.

Best AM4 motherboard by far, I love it.

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