MSI AMD B550-A PRO DDR4 ATX Socket AM4 Motherboard

MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX

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MSI AMD B550-A PRO DDR4 ATX Socket AM4 Motherboard

Overall Rating: 4.3 / 5 (average from multiple review sources, as of 12 Feb 2026)
Based on a total of 7,896 customer reviews from independent review platforms.

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MSI B550-A PRO Motherboard ATX - Supports AMD Ryzen 3rd Gen Processors, AM4, DDR4 Boost (4400MHz/OC), 1 x PCIe 4.0/3.0 x16, 1 x PCIe 3.0/3.0 x16, 1 x M.2 Gen4 x4, 1 x M.2 Gen3 x4, HDMI, Gigabit LAN

Overall Rating: 2.5 / 5 (average from multiple review sources, as of 8 Feb 2026)
Based on a total of 46,321 customer reviews from independent review platforms.

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MSI B550-A Pro (AMD AM4) Pro Series B550 ATX Motherboard

Overall Rating: 4.7 / 5 (average from multiple review sources, as of 10 Feb 2026)
Based on a total of 27,431 customer reviews from independent review platforms.

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MSI B550-A PRO AM4 Motherboard

Overall Rating: 4.3 / 5 (average from multiple review sources, as of 9 Feb 2026)
Based on a total of 503,613 customer reviews from independent review platforms.

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MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs

Overall Rating: 4.4 / 5 (average from multiple review sources, as of 12 Feb 2026)
Based on a total of 32,636 customer reviews from independent review platforms.

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Msi Pro B550 Amd Pc Gaming Motherboard Black

Overall Rating: 3.8 / 5 (average from multiple review sources, as of 16 Feb 2026)
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MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX

Overall Rating: 2.1 / 5 (average from multiple review sources, as of 11 Feb 2026)
Based on a total of 45 customer reviews from independent review platforms.

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MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX

Overall Rating: 3.2 / 5 (average from multiple review sources, as of 9 Feb 2026)
Based on a total of 42 customer reviews from independent review platforms.

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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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MSI B550-A PRO Motherboard ATX - Supports AMD Ryzen 3rd Gen Processors, AM4, DDR4 Boost (4400MHz/OC), 1 x PCIe 4.0/3.0 x16, 1 x PCIe 3.0/3.0 x16, 1 x M.2 Gen4 x4, 1 x M.2 Gen3 x4, HDMI, Gigabit LAN

Overall Rating: 2.4 / 5 (average from multiple review sources, as of 12 Feb 2026)
Based on a total of 45,568 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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Product Information

Weight & dimensions

Width 305 mm
Height 65 mm
Depth 244 mm

Other features

Weight 1 kg

Packaging content

Drivers included Yes
Cables included SATA

Logistics data

Harmonized System (HS) code 84733020

Expansion slots

Number of M.2 (M) slots 2
PCI Express x16 (Gen 3.x) slots 1
PCI Express x16 (Gen 4.x) slots 1
PCI Express x1 (Gen 3.x) slots 2

Features

Number of mounting holes 9
Motherboard chipset family AMD
Product colour Black
Motherboard chipset AMD B550
Motherboard form factor ATX
Audio output channels 7.1 channels
Audio chip Realtek ALC892
Component for PC

Network

Ethernet interface type Gigabit Ethernet
Ethernet LAN Yes
Wi-Fi No
LAN controller Realtek 8111H

Rear panel I/O ports

DisplayPorts quantity 1
HDMI ports quantity 1
PS/2 ports quantity 1
Ethernet LAN (RJ-45) ports 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity 1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2
USB 2.0 ports quantity 4

Internal I/O

RGB LED pin header Yes
TPM connector Yes
12V power connector Yes
Number of SATA III connectors 6
USB 3.2 Gen 1 (3.1 Gen 1) connectors 1
USB 2.0 connectors 2
Chassis intrusion connector Yes
Number of chassis fan connectors 6
CPU fan connector Yes
ATX Power connector (24-pin) Yes
Front panel audio connector Yes

Graphics

Maximum resolution 4096 x 2160 pixels
On-board graphics card No
Parallel processing technology support 2-Way CrossFireX
Maximum graphics card memory 16000 MB

Storage controllers

RAID levels 0, 1, 10
Supported storage drive interfaces SATA III
Supported storage drive types HDD & SSD

Memory

Memory slots type DIMM
Number of memory slots 4
Supported memory types DDR4-SDRAM
Maximum internal memory 128 GB
Supported memory clock speeds 1866,2133,2400,2667,2800,2933,3000,3066,3200,3466,3600,3733,3866,4000,4133,4266,4400,4800 MHz
ECC сompatibility ECC & Non-ECC
Memory channels Dual-channel

Processor

Maximum number of SMP processors 1
Compatible processor series AMD Ryzen 3000 Series
Processor socket Socket AM4
Processor manufacturer AMD

BIOS

Clear CMOS jumper Yes

Product information

At a glance

  • Supports latest AMD Ryzen processors
  • Fast data transfer with PCIe 4.0
  • Stylish design with customizable RGB lighting

Note: This text was created with the help of AI.

Upgrade Your Gaming Experience with the MSI B550-A Pro

The Motherboards are the backbone of any gaming rig, and the MSI B550-A Pro is designed to cater to gamers, content creators, and PC builders who demand reliability and performance. Whether you're diving into the latest AAA titles, streaming your gameplay, or working on graphic-intensive projects, this motherboard provides a robust platform that can handle it all. Its versatility makes it an ideal choice for both novice builders and seasoned professionals looking to enhance their workstation.

Power-Packed Features and Performance

The MSI B550-A Pro is packed with features that promote high performance and stability. Supporting the latest AMD Ryzen processors, this motherboard boasts a high-quality VRM design that ensures efficient power delivery and thermal management. You'll experience faster load times and seamless multitasking thanks to support for PCIe 4.0, allowing for faster graphics cards and SSDs. Additional features like USB 3.2 Gen 2 ports and an M.2 slot with M-key support ensure you'll enjoy lightning-fast data transfer speeds.

Sleek Design Meets Enhanced Functionality

Not only does the MSI B550-A Pro deliver on performance, but it also looks great in any build. Its sleek black and silver design is both modern and elegant, making it a perfect fit for any gaming setup. With a robust heat sink design and steel-reinforced PCIe slots, this motherboard not only looks good but is built to last. The inclusion of customizable RGB lighting adds a personal touch, allowing you to match your build's aesthetic while enhancing your overall gaming environment.

Connectivity and Expansion Options

When it comes to connectivity, the MSI B550-A Pro does not disappoint. Featuring multiple fan headers and a variety of connectivity options, including HDMI and DisplayPort outputs, it ensures that you can connect all your peripherals with ease. With support for up to 128GB of DDR4 RAM and multiple storage options, including SATA and M.2 slots, this motherboard provides you with the flexibility to expand your system as needed. Say goodbye to limitations and hello to a world of possibilities!

Note: This text was created with the help of AI.

Pros and cons

Pros

  • Supports AMD Ryzen processors
  • High-quality VRM for stability
  • PCIe 4.0 for faster speeds
  • Customizable RGB lighting
  • Multiple storage options available

Cons

  • Best for mid to high-end builds
  • May require manual RGB setup

Note: This text was created with the help of AI.

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MSI AMD B550-A PRO DDR4 ATX Socket AM4 Motherboard

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MSI AMD B550-A PRO Socket AM4 DDR4 ATX Motherboard Meet the MSI AMD B550-A PRO Socket AM4 DDR4 ATX Motherboard - a powerhouse that ticks all the boxes for advanced computing needs. With its robust design and outstanding specifications, this motherboard offers an admirable blend of performance, stability, and customisation. Built on AMD Socket AM4 and the B550 chipset, it supports the powerful AMD Ryzen 3000 Series processors, promising to boost your productivity and take your computing experience to new heights. Why You'll Love It Experience amazing performance with AMD Ryzen 3000 Series CPU support Gain seamless operations from the advanced AMD B550 chipset Maximise your storage with 6x SATA 6Gb/s and 2x M.2 slots Upgrade your connectivity with multiple rear and internal USB ports Secure the ultimate viewing with HDMI and DisplayPort connectors Enjoy easy upgrading and expandability with DDR4 memory slot support Perfect For This motherboard is ideal for tech enthusiasts, programmers,
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