Scan code: LN107033 Manufacturer code: B450M-A PRO MAX

MSI AMD Ryzen B450M-A PRO MAX AM4 micro-ATX Motherboard

MSI B450M-A PRO MAX, AMD B450, S AM4, micro-ATX DDR4, SATA3, M.2, Realtek GbE LAN, USB 3.2, HDMI/DVI

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Scan code: LN107033 Manufacturer code: B450M-A PRO MAX
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Delivery Options
  • By DPD to your specified address. | £5.48 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout

    Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window

    Weekend, timed and European delivery options are available at checkout
  • Collect instore Collect from our Bolton store, BL6 6PE | Free

    Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE)

  • UPS and DPD Pickup Pickup from local convenience store | £4.79

    Collect your parcel from your newsagents, petrol stations and convenience stores

  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Showcase your Skills with the MSI B450M A-PRO MAX Micro-ATX Motherboard

MSI B450M A-Pro MAX M-ATX Motherboard

Huge performance in a small form factor Introducing the MSI B450M A-PRO MAX M-ATX Motherboard, a revolutionary B450 motherboard in a small form factor thats ready to transform your PC with incredible power and performance. The B450M houses a AM4 socket which will support AMD 1st, 2nd and 3rd generation Ryzen CPUs and also features slots for 2x DDR4 dual channel ready to support DDR4 RAM at speeds of up to 4133 MHz(3rd Gen Ryzen with A-XMP OC Mode) with a maximum capacity for 64GB of internal system memory, MSI have also included turbo M.2 running at PCI-E Gen3x4 and audio boost to ensure your ears are rewarded with superior sound quality.

AMD B450Chipset

AM4CPU Socket

Micro-ATXForm Factor

Keep your CPU Performing Even Under High Demand

Effective power and temperature management

High Power Efficiency Power on your RYZEN processor with optimized circuit layouts and high quality power delivery parts for an incredibly stable operation. Cooling your PC is essential for reliable performance. MSI motherboards feature excellent power design with solid and heavy heatsink. We've made sure to include enough fan headers with full control to allow you to cool your system any way you want.

Keep Your Assembly Simple with MSI D.I.Y Design

D.I.Y Friendly

Convenient and Easy Assembly MSI motherboards feature tons of convenient and smart design, such as convenient pin-header keep out zone, friendly SATA & USB location and so on, so DIY users can pick and choose any gaming rig they want.

Optimised Memory Layout with DDR4 Boost

DDR4 Boost

UNMATCHED MEMORY PERFORMANCEOptimized layout design and a fully isolated memory circuitry ensures perfect stability and performance. You never have to worry about your system crashing during games with MSI DDR4 BOOST.

Take your System to the Next Level

Turbo m.2 slots

Superfast Storage with Turbo M.2 MSI motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Start games faster, load levels faster and have a real advantage over your enemies. The B450M A-Pro MAX also features Turbo M.2 technology, enjoy a blazing fast system boot up and insanely quick loading of applications and games with MSI motherboards. Delivering speeds up to 32Gb/s per device using Gen3 x4, Turbo M.2 is over 5 times faster than a regular SATA III connection!

Packed and Easy to Use BIOS Setup


PERFORMANCE ENHANCING APPS Complete your high performance experience with an array of performance enhancing software from MSI. From a loaded yet easy to use BIOS to potent live system tools, get the most out of your motherboard at any moment.

A Motherboard Designed for Compatibility in Mind


Easier to Pick compatible Products MSI motherboards are designed with both physical and device compatibility in mind. Pin-headers, SATA, and USB connectors are positioned away from other components and devices. A comprehensive DDR memory Qualified Vendor List (QVL), the result of extensive memory testing and tuning, makes it easier to pick from compatible products.

Control Your System with MSI Dragon Center

Easy to Access Software to Monitor your system The exclusive and brand-new UI merges all the MSI software functions into one specific application – MSI Dragon Center. Not only integrates all the MSI software functions, but also sync all the MSI desktop products to work together, providing the best user experience. No more messy programs or ICONs, just one click and you can enjoy all the functions in Dragon Center.

MSI Dragon Center

Gaming Mode MSI Gaming Mode provides the most suitable setting for your whole gaming system, bring you the best gaming experience with one click.

MSI Game Boost

MSI Game Boost Need more power from your CPU and memory to get more FPS? MSI Game Boost enables one-second overclocking, giving you the performance boost you need.

MSI Overclocking

OC Setting Interface With an intuitive interface, OC Setting allows you to tune settings to increase system stability, maximize performance and optimize your system’s cooling features.

Mystic Light Controls

Mystic Light Control Create your own colorful masterpiece with ease. Make your PC look and feel brand new with any color you want with just a few clicks.

Core Specifications
Edition B450M-A PRO MAX
Form Factor MicroATX
CPU Socket AM4
Chipset AMD B450
RAM Memory Support
Memory Type DDR4
Memory Channel Dual (2)
Memory Type (ECC) ECC/Non-ECC
Memory Type (R/U) UDIMM (Unbuffered)
Memory Speed (Mhz)
  • DDR4 - 1866
  • DDR4 - 2133
  • DDR4 - 2400
  • DDR4 - 2667
  • DDR4 - 2800
  • DDR4 - 2933
  • DDR4 - 3000
  • DDR4 - 3200
  • DDR4 - 3733
  • DDR4 - 3866(OC)
  • DDR4 - 4000(OC)
  • DDR4 - 4133(OC)
Max. Memory Capacity 64GB (2x32GB)
Audio Realtek ALC892 7.1 HD Audio
Graphics Support
Primary GPU Interface PCIe 3.0 (x16)
NVIDIA SLI Support Not Supported
AMD CrossFire Support Not Supported
Integrated Graphics Requires Processor Graphics or Discrete GPU
On-Board Graphics Connectors
  • DVI-D
  • HDMI 1.4
Internal Connectivity
Expansion Slots
  • 1 x M.2, 22-60/80/110, PCIe Gen3
  • 1 x PCIe 2.0 x1
  • 1 x PCIe 3.0 x16
SATA Support SATA3
RAID Support via SATA
Storage Mode Support
  • RAID 0
  • RAID 1
  • RAID 10
  • RAID 5
Internal I/O
  • 1 x 24-pin (Power)
  • 1 x 4-pin (Power)
  • 1 x 4-pin CPU Fan Connector
  • 1 x 4-pin System Fan Connector
  • 1 x Chassis Intrusion connector
  • 1 x Clear CMOS jumper
  • 1 x Front Panel Audio Header
  • 2 x Front Panel Connector
  • 4 x SATA III - 6Gb/s
  • 1 x Serial (COM) Header
  • 1 x TPM (Trusted Platform Module)
  • 2 x USB 2.0 Header
  • 1 x USB 3.2 Gen1 Header
External Connectivity
Network Interface Type Wired Gigabit LAN (10/100/1000)
Network Chip/Modules 1 x Realtek RTL8111H (Gigabit LAN)
Rear I/O Connectors
  • 1 x DVI-D
  • 1 x HDMI 1.4
  • 1 x Line In
  • 1 x Line Out
  • 1 x Mic-In
  • 1 x PS/2 Keyboard
  • 1 x PS/2 Mouse
  • 1 x RJ-45
  • 2 x USB 2.0
  • 4 x USB 3.2 Gen1 Type-A
Additional Specifications
Water Cooled No
Cooling Passive Heatsinks
QPI Speed N/A
Board Dimensions 236 x 200 mm
Additional Information
Scan Code LN107033
Model Number B450M-A PRO MAX
GTIN 4719072667696

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

36 months
Return to base
DOA Period:
14 days
RTB Period:
36 months
Manufacturer Contact Details
0871 472 4747

Will this work with the ryzen 5 3400g straight from the box without updating bios? Thx

Asked by: Finnigan
It says in the description it supports 3rd gen Ryzen so yes, it will support a 3400G out of the box without a bios update.
Answered by: ZeroG
Date published: 2020-06-30

Is this compatible with AMD Ryzen 7 3700X AM4 CPU

Is this motherboard compatible with AMD Ryzen 7 3700X AM4 CPU and does it need a BIOS update for support? If so can this be done without another AM4 CPU?
Asked by: PiX06
Please contact our Sales team before ordering, and we can arrange a BIOS Flash if required
Answered by: DavidScan
Date published: 2020-08-07
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MSI AMD Ryzen B450M-A PRO MAX AM4 micro-ATX Motherboard
MSI AMD Ryzen B450M-A PRO MAX AM4 micro-ATX Motherboard