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MSI B450M-A Pro Max II Motherboard, Micro-ATX for AMD Ryzen 5000, 4000, 3000, 2000, 1000, AM4

£99.02 (as of 12/17/2025 03:11 PST - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The MSI B450M-A Pro Max II is a Micro-ATX motherboard for AMD Ryzen processors on AM4, with DDR4 Memory Boost up to 4133+MHz/OC, a PCIe 3.0 x16 slot, an M.2 Gen3 slot and 2.5G LAN. Check case size and processor compatibility before ordering.

SKU: B0CJ2PXTQ5 Category:

Quick Summary

The MSI B450M-A Pro Max II is a Micro-ATX motherboard for AMD Ryzen processors on the AM4 platform. It includes DDR4 Memory Boost up to 4133+MHz/OC, a PCIe 3.0 x16 slot, an M.2 Gen3 slot and 2.5G LAN.

It is a clear fit for buyers who need an AM4 motherboard with the stated Ryzen processor support and the listed connectivity and storage options.

Who It Is Best For

This board suits buyers building or replacing an AM4 system and checking Ryzen compatibility carefully. It also suits users who want the stated Micro-ATX form factor and the listed network and storage features.

Key Details

DetailVerified information and buyer relevance
BrandMSI.
ModelB450M-A Pro Max II.
Form factorMicro-ATX, which is important when matching the board to a compatible case.
Processor supportFor AMD Ryzen processors 5000, 4000, 3000, 2000 and 1000 on AM4.
MemoryDDR4 Memory Boost 4133+MHz/OC.
Expansion slotPCIe 3.0 x16 slot.
Storage slotM.2 Gen3 slot.
Networking2.5G LAN.
Software featureX-Boost software for improving the performance of storage or USB devices.
M.2 detailTurbo M.2 running on PCI-E Gen3 x4 for NVMe based SSDs.

Why Buyers Choose It

  • The AM4 support list is broad, so it is easier to match to a compatible Ryzen processor.
  • DDR4 Memory Boost up to 4133+MHz/OC gives a clear memory specification to compare before ordering.
  • 2.5G LAN is a useful network detail for buyers who want the stated fast connection option.
  • The M.2 Gen3 slot and Turbo M.2 wording show the board is set up for the listed NVMe SSD use.

Real World Use

In use, this motherboard is intended as the main board in a Micro-ATX AM4 system. The stated PCIe 3.0 x16 slot supports a graphics card, while the M.2 Gen3 slot is there for NVMe based SSD storage.

The listed X-Boost software is described as detecting and allowing performance improvement for storage or USB devices, so buyers should check whether that software feature is relevant to their setup.

What To Know Before You Buy

Check that your chosen case supports Micro-ATX before ordering. Confirm your processor is one of the listed AMD Ryzen families for AM4, and review the memory, storage and expansion needs of your build against the stated slots and DDR4 support.

Pros: The board combines AM4 Ryzen support, DDR4 Memory Boost and 2.5G LAN in a Micro-ATX layout.

Cons: Buyers should check case size and processor compatibility carefully before choosing it.

Common Buyer Questions

Which processors does it support?
It is listed for AMD Ryzen processors 5000, 4000, 3000, 2000 and 1000 on AM4.

What memory does it use?
It uses DDR4 memory and lists Memory Boost up to 4133+MHz/OC.

Does it include a fast network connection?
Yes, 2.5G LAN is listed as part of the board.

What storage connection is listed?
An M.2 Gen3 slot is included, and Turbo M.2 is described as running on PCI-E Gen3 x4 for NVMe based SSDs.

Final Buying View

The MSI B450M-A Pro Max II is aimed at AM4 Ryzen builds that need the listed Micro-ATX layout, DDR4 support, PCIe 3.0 x16 expansion and 2.5G LAN. Confirm processor fit and case compatibility before you choose it.

Brand

MSI

Manufacturer

MSI

Binding

Personal Computers

Product Group

Personal Computer

Language
EAN

4711377125291

Part Number

B450M-A PRO MAX II

Model

B450M-A PRO MAX II

Color

Black

Product Dimensions

9.29 x 7.87 x 2.36 inches

Item Weight

1.06 pounds

Release Date

September 19, 2023

Size

Micro-ATX

Number Of Items

1

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