ASUS Prime B450 Series motherboards provide the solid foundation needed for your first build, plus flexibility to grow with your ambitions. All the good stuff that’s packed into AMD Ryzen processors was melded 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 B450 Series motherboard, you build smart, easy and affordably.




36 Months warranty

Product Type

Motherboard – ATX

Chipset Type

AMD B450

Processor Socket

Socket AM4

Max Processors Qty


Compatible Processors

Ryzen (supports 1st and 2nd Generation Ryzen / Ryzen with Radeon Vega Graphics)

Max Size

64 GB



Bus Clock

2400 MHz, 2133 MHz, 2666 MHz, 2800 MHz (O.C.), 3000 MHz (O.C.), 3200 MHz (O.C.)

Supported RAM Integrity Check


Registered or Buffered



Dual channel memory architecture


HD Audio (8-channel)

Audio Codec

Realtek ALC887-VD2

Compliant Standards

High Definition Audio

Network Controller

Realtek RTL8111H

Network Interfaces

Gigabit Ethernet

Expansion Slots

1 x CPU

4 x DIMM 288-pin

1 x PCIe 3.0 x16 (x16 mode (with 1st and 2nd Generation Ryzen CPU); x8 mode (with Ryzen with Radeon Vega Graphics))

3 x PCIe 2.0 x1

1 x PCIe 2.0 x16 (x4 mode)

Storage Interfaces

SATA-600 -connectors: 4 x 7pin Serial ATA – RAID 0 / RAID 1 / RAID 10

SATA-600 -connectors: 2 x 7pin Serial ATA

SATA-600 / PCIe 3.0 -connectors: 1 x M.2


1 x LAN (Gigabit Ethernet)

2 x USB 3.1 Gen 1

1 x PS/2 keyboard / mouse

1 x audio line-in – mini-jack

1 x audio line-out – mini-jack

1 x microphone – mini-jack

2 x USB 2.0

1 x DVI-D

1 x HDMI

2 x USB 3.1 Gen 2

1 x USB-C Gen1

Internal Interfaces

4 x USB 2.0 – header

2 x USB 3.1 Gen 1 – header

1 x serial – header

1 x SPDIF out – header

1 x audio – header

Power Connectors

24-pin main power connector, 8-pin ATX12V connector



BIOS Features

Multilingual BIOS, ASUS Quiet Thermal Solution, UEFI BIOS, ASUS EZ Flash 3, ACPI 6.1 support, SMBIOS 3.1 support

Sleep / Wake Up

Wake on LAN (WOL), wake on PME

Hardware Features

C.P.R. (CPU Parameter Recall), ASUS Q-Design, ESD Guards, Q-DIMM, Q-Slot, CrashFree BIOS 3, 6 Phase Power Design, ASUS DIGI+ VRM, Fanless Design Heatsink, AMD CrossFireX technology support, Preboot eXecution Environment (PXE), ASUS Stainless Steel Back I/O, LANGuard, ASUS Overvoltage Protection, ASUS SafeSlot Core, ASUS Fan Xpert 4 Core, AMD StoreMI technology, NVM Express RAID support, ASUS Aura Sync

Included Accessories

1 x M.2 screw, I/O back cover

Cables Included

2 x Serial ATA cable

Software Included

Drivers & Utilities, ASUS AI Charger, ASUS AI Suite III, PC Cleaner, ASUS EZ Flash 3, File Transfer


30.5 cm


23.4 cm

  • With the Energy Processing Unit (EPU) you’ll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode.
  • With Prime B450-PLUS motherboard you have comprehensive control over fans, water pumps, and even all-in-one (AIO) coolers – all via Fan Expert 4 Core. Whether you’re cooling with air or water, Auto-Tuning mode intelligently configures all parameters with a single click.
  • Prime B450 Series features comprehensive cooling controls, configurable via ASUS Fan Xpert software or the UEFI BIOS.
  • Featuring an array of trace layout tweaks that improve memory stability, PRIME B450 Series provides a potent foundation for your build. With comprehensive support for the full gamut of Ryzen memory configurations – from entry-level to performance-oriented – PRIME B450 Series is a versatile all-rounder that can work or play.
  • The UEFI BIOS is an early waypoint on any PC-building journey, and Prime B450 Series has one of the best in the business.
  • With backward-compatible USB 3.1 Gen2 Type-A, you’ll experience ultimate connection flexibility and blazing data-transfer speeds of up to 10Gbps – twice as fast as standard USB 3.1 Gen1.
  • USB 3.1 Gen1 is right where you need it, with four super-speed headers for the front panel. Experience data-transfer speeds up to 10x faster than USB 2.0 with instant Plug-and-Play connectivity, and avoid back-breaking contortions in the hunt for hard-to-reach rear ports.
  • Prime B450 Series motherboards are engineered with 5X Protection III, employing fine components, excellent circuit design and exacting standards to assure the quality and long-term durability of your investment. That means exceptional protection and stability for your build – thanks to decades of engineering experience.
  • The superior compatibility of Prime B450 Series is evidenced by an extensive list of supported devices – which includes thousands of compatible components – and Qualified Vendor List (QVL) that identifies memory compatibility. It all adds up to more choices for worry-free PC-building experiences.
  • Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced!
  • A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura Sync offers full lighting connected via the motherboard’s RGB header, with a variety of functional presets for external LED strips. And it can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware.
  • Built-in LED lighting illuminates your build in a variety of eye-catching styles.
  • Prime B450 series isn’t just VR ready – it goes way beyond. The ASUS Beyond VR Ready marque means that Prime B450 series has been tested with loads of class-leading components to ensure that your productivity, gaming and entertainment needs are tuned for maximum performance. ASUS Beyond VR Ready opens up a different way to configure and build your dream system with total confidence.