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Product Details

  • Comprehensive cooling: PCH heatsink and Fan Xpert
  • Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 1 Type-A
  • 5X Protection III: Multiple hardware safeguards for all-around system protection
  • LED illumination: Lighting control for both PCIe slot and audio trace paths
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 – maximising your productivity.
All-around Energy Efficiency
With the Energy Processing Unit (EPU), you'll enjoy system-wide power savings. The EPU automatically optimises power consumption and maximises savings with Away mode.
Flexible Cooling Controls
Fan Xpert 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 whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.
Precise Digital Power Control
The Digi+ voltage-regulator module (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.
UEFI BIOS
The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.
Advanced Tuning for Serious Tweakers
An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.
Quick and Simple Setup
EZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings — all to help you get your rig up and running in no time.
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.
Smart Protection
A dedicated integrated circuit protects the fan header, including short circuit and over temperature protections.
4-Pin PWM/DC Fan
The onboard CHA FAN header supports PWM and DC mode.
Multiple Temperature Sources
Each header can monitor and react to dedicated thermal sensors.
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.

USB 3.2 Gen 1 Type-A
Numerous USB ports support high-end rigs loaded with peripherals, including four rear-panel USB Type-A connectors with fast USB 3.2 Gen 1 connectivity for compatible cases.
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 customise your system to create a unique personal look.
Combined onboard features deliver elevated audio
Outstanding Audio
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.
Armoury Crate
Armoury Crate is a new software utility designed to give you centralised control of supported products, from a single intuitive interface. Armoury Crate provides control of settings for ASUS products, including keyboard and mouse preferences. This software even features dedicated product registration and highlight to help you stay in touch with the ASUS community.
Driver & Manual Download
Account Management
Fortified PCIe slot prevents damage
SafeSlot Core
SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, SafeSlot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.
ASUS Prime motherboards have strengthened solder points around both the PCIe and DIMM pins.
  • CPU
    AMD AM4 Socket for 3rd/2nd/1st Gen AMD Ryzen™/2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/Athlon™ with Radeon™ Vega Graphics Processors *
    * Refer to www.asus.com for CPU support list
  • Chipset
    AMD B450
  • Memory
    3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors
    2 x DIMM, Max. 64GB, DDR4 4400(O.C)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory *
    Dual Channel Memory Architecture
    ECC Memory (ECC mode) support varies by CPU.
    * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
    * The maximum memory frequency supported varies by processor.
  • Graphic
    Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors *
    1 x D-Sub
    1 x DVI-D
    1 x HDMI 2.0b
    *Graphics specifications may vary between CPU types.
  • Expansion Slots
    3rd/2nd/1st Gen AMD Ryzen™ Processors
    1 x PCIe 3.0 x16 (x16 mode)
    2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics Processors
    1 x PCIe 3.0 x16 (x8 mode)
    AMD Athlon™ with Radeon™ Vega Graphics Processors
    1 x PCIe 3.0 x16 (x4 mode)
    AMD B450 chipset
    2 x PCIe 2.0 x1
  • Storage
    Total supports 1 x M.2 slot(s) and 4 x SATA 6Gb/s ports
    3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics :
    1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    Athlon™ with Radeon™ Vega Graphics Processors :
    1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA mode)
    AMD B450 chipset :
    4 x SATA 6Gb/s port(s),
    Support Raid 0, 1, 10
  • LAN
    Realtek® RTL8111H
    ASUS LANGuard
  • Audio
    Realtek ALC887/897 7.1-Channel High Definition Audio CODEC *
    - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback
    Audio Feature :
    - LED-illuminated design
    - Audio Shielding
    - Dedicated audio PCB layers
    - Premium Japanese audio capacitors
    * Choose the chassis with HD audio module in front panel to support 8-channel audio output.
  • USB Ports
    Rear USB Port ( Total 6 )
    4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
    2 x USB 2.0 port(s)(2 x Type-A)
    Front USB Port ( Total 6 )
    2 x USB 3.2 Gen 1 port(s)
    4 x USB 2.0 port(s)
  • Software Features
    ASUS Exclusive 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
  • ASUS Special Features
    ASUS 5X PROTECTION III - ASUS DIGI+ VRM - ASUS LANGuard - ASUS Overvoltage Protection - ASUS SafeSlot Core - ASUS Stainless-Steel Back I/O ASUS Q-Design - ASUS Q-DIMM - ASUS Q-Slot ASUS Thermal Solution - Aluminum heatsink design ASUS EZ DIY - BIOS FlashBack™ button - BIOS FlashBack™ LED ASUS Lighting Control
  • Back I/O Ports
    1 x PS/2 keyboard/mouse combo port(s)
    1 x DVI-D
    1 x D-Sub
    1 x HDMI
    1 x LAN (RJ45) port(s)
    4 x USB 3.2 Gen 1 (blue) Type-A
    2 x USB 2.0
    3 x Audio jack(s)
    1 x BIOS FlashBack™ Button(s)
  • Internal I/O
    1 x CPU Fan connector(s) (1 x 4 -pin)
    1 x Chassis Fan connector(s) (1 x 4 -pin)
    1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) (19-pin)
    2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
    1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    1 x SPI TPM header
    1 x COM port(s) connector(s)
    4 x SATA 6Gb/s connector(s)
    1 x S/PDIF out header(s)
    1 x 24-pin EATX Power connector(s)
    1 x 8-pin ATX 12V Power connector(s)
    1 x Front panel audio connector(s) (AAFP)
    1 x System panel(s)
    1 x Clear CMOS jumper(s)
    1 x COM port header
    1 x Speaker connector
  • Accessories
    User's manual
    I/O Shield
    2 x SATA 6Gb/s cable(s)
    1 x M.2 Anchor
    1 x Supporting DVD
  • BIOS
    256 Mb Flash ROM, UEFI AMI BIOS
  • Operating System
    Windows® 10 64-bit
    Windows® 7 64-bit *
  • Form Factor
    mATX Form Factor
    8.9 inch x 8.7 inch ( 22.6 cm x 22.1 cm )
  • Note
    *To support Windows 7 64-bit, please install an AMD Ryzen™ 2nd Generation or Ryzen™ 1st Generation Processor.

ASUS AM4 PRIME B450M-K II M-ATX

SKU 90MB1600-M0EAY0

Specification

• Manufacturer
AMD
• Brand
ASUS
• Socket Board
AM4
• Motherboard form factor
mATX
• Chipset
B450
• Wi-Fi
No
• Memory Type
DDR4
• Bluetooth
No

240 available

Decrease Price
Increase Price

£65.99

Product Details

  • Comprehensive cooling: PCH heatsink and Fan Xpert
  • Ultrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 1 Type-A
  • 5X Protection III: Multiple hardware safeguards for all-around system protection
  • LED illumination: Lighting control for both PCIe slot and audio trace paths
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 – maximising your productivity.
All-around Energy Efficiency
With the Energy Processing Unit (EPU), you'll enjoy system-wide power savings. The EPU automatically optimises power consumption and maximises savings with Away mode.
Flexible Cooling Controls
Fan Xpert 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 whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS.
Precise Digital Power Control
The Digi+ voltage-regulator module (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.
UEFI BIOS
The renowned ASUS UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.
Advanced Tuning for Serious Tweakers
An intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.
Quick and Simple Setup
EZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings — all to help you get your rig up and running in no time.
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.
Smart Protection
A dedicated integrated circuit protects the fan header, including short circuit and over temperature protections.
4-Pin PWM/DC Fan
The onboard CHA FAN header supports PWM and DC mode.
Multiple Temperature Sources
Each header can monitor and react to dedicated thermal sensors.
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.

USB 3.2 Gen 1 Type-A
Numerous USB ports support high-end rigs loaded with peripherals, including four rear-panel USB Type-A connectors with fast USB 3.2 Gen 1 connectivity for compatible cases.
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 customise your system to create a unique personal look.
Combined onboard features deliver elevated audio
Outstanding Audio
Intelligent design and premium hardware create audio quality unlike anything you've ever experienced.
Armoury Crate
Armoury Crate is a new software utility designed to give you centralised control of supported products, from a single intuitive interface. Armoury Crate provides control of settings for ASUS products, including keyboard and mouse preferences. This software even features dedicated product registration and highlight to help you stay in touch with the ASUS community.
Driver & Manual Download
Account Management
Fortified PCIe slot prevents damage
SafeSlot Core
SafeSlot Core is the ASUS-exclusive PCIe slot. Featuring a fortified design that's anchored to the motherboard by a special hook, SafeSlot Core provides 1.6x stronger retention and 1.3x greater shearing resistance than standard expansion slots.
ASUS Prime motherboards have strengthened solder points around both the PCIe and DIMM pins.
  • CPU
    AMD AM4 Socket for 3rd/2nd/1st Gen AMD Ryzen™/2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/Athlon™ with Radeon™ Vega Graphics Processors *
    * Refer to www.asus.com for CPU support list
  • Chipset
    AMD B450
  • Memory
    3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors
    2 x DIMM, Max. 64GB, DDR4 4400(O.C)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz Un-buffered Memory *
    Dual Channel Memory Architecture
    ECC Memory (ECC mode) support varies by CPU.
    * Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
    * The maximum memory frequency supported varies by processor.
  • Graphic
    Integrated Graphics in the 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics/ Athlon™ with Radeon™ Vega Graphics Processors *
    1 x D-Sub
    1 x DVI-D
    1 x HDMI 2.0b
    *Graphics specifications may vary between CPU types.
  • Expansion Slots
    3rd/2nd/1st Gen AMD Ryzen™ Processors
    1 x PCIe 3.0 x16 (x16 mode)
    2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics Processors
    1 x PCIe 3.0 x16 (x8 mode)
    AMD Athlon™ with Radeon™ Vega Graphics Processors
    1 x PCIe 3.0 x16 (x4 mode)
    AMD B450 chipset
    2 x PCIe 2.0 x1
  • Storage
    Total supports 1 x M.2 slot(s) and 4 x SATA 6Gb/s ports
    3rd/2nd/1st Gen AMD Ryzen™/ 2nd and 1st Gen AMD Ryzen™ with Radeon™ Vega Graphics :
    1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    Athlon™ with Radeon™ Vega Graphics Processors :
    1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA mode)
    AMD B450 chipset :
    4 x SATA 6Gb/s port(s),
    Support Raid 0, 1, 10
  • LAN
    Realtek® RTL8111H
    ASUS LANGuard
  • Audio
    Realtek ALC887/897 7.1-Channel High Definition Audio CODEC *
    - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback
    Audio Feature :
    - LED-illuminated design
    - Audio Shielding
    - Dedicated audio PCB layers
    - Premium Japanese audio capacitors
    * Choose the chassis with HD audio module in front panel to support 8-channel audio output.
  • USB Ports
    Rear USB Port ( Total 6 )
    4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
    2 x USB 2.0 port(s)(2 x Type-A)
    Front USB Port ( Total 6 )
    2 x USB 3.2 Gen 1 port(s)
    4 x USB 2.0 port(s)
  • Software Features
    ASUS Exclusive 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
  • ASUS Special Features
    ASUS 5X PROTECTION III - ASUS DIGI+ VRM - ASUS LANGuard - ASUS Overvoltage Protection - ASUS SafeSlot Core - ASUS Stainless-Steel Back I/O ASUS Q-Design - ASUS Q-DIMM - ASUS Q-Slot ASUS Thermal Solution - Aluminum heatsink design ASUS EZ DIY - BIOS FlashBack™ button - BIOS FlashBack™ LED ASUS Lighting Control
  • Back I/O Ports
    1 x PS/2 keyboard/mouse combo port(s)
    1 x DVI-D
    1 x D-Sub
    1 x HDMI
    1 x LAN (RJ45) port(s)
    4 x USB 3.2 Gen 1 (blue) Type-A
    2 x USB 2.0
    3 x Audio jack(s)
    1 x BIOS FlashBack™ Button(s)
  • Internal I/O
    1 x CPU Fan connector(s) (1 x 4 -pin)
    1 x Chassis Fan connector(s) (1 x 4 -pin)
    1 x USB 3.2 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.2 Gen 1 port(s) (19-pin)
    2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
    1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
    1 x SPI TPM header
    1 x COM port(s) connector(s)
    4 x SATA 6Gb/s connector(s)
    1 x S/PDIF out header(s)
    1 x 24-pin EATX Power connector(s)
    1 x 8-pin ATX 12V Power connector(s)
    1 x Front panel audio connector(s) (AAFP)
    1 x System panel(s)
    1 x Clear CMOS jumper(s)
    1 x COM port header
    1 x Speaker connector
  • Accessories
    User's manual
    I/O Shield
    2 x SATA 6Gb/s cable(s)
    1 x M.2 Anchor
    1 x Supporting DVD
  • BIOS
    256 Mb Flash ROM, UEFI AMI BIOS
  • Operating System
    Windows® 10 64-bit
    Windows® 7 64-bit *
  • Form Factor
    mATX Form Factor
    8.9 inch x 8.7 inch ( 22.6 cm x 22.1 cm )
  • Note
    *To support Windows 7 64-bit, please install an AMD Ryzen™ 2nd Generation or Ryzen™ 1st Generation Processor.

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