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MSI

MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX

  • Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update
  • Supports DDR4 Memory, up to 4400(OC) MHz
  • Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2
  • Premium Thermal Solution: Extended Heatsink Design with additional choke thermal pad and 7W/mK pad, and M.2 Shield Frozr are built for high performance system and non-stop works
  • Powerful Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, Creator Genie, DDR4 Boost
See all 61 specifications
£98.62
PCHUB.UK see shop

Up to £16.28 cheaper than the most expensive shop

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2 offers compared

Sorted by total price including delivery
  1. ● In stock see shop
    £98.62
    Go to shop: PCHUB.UK
  2. ● In stock see shop
    £114.90
    Go to shop: Tesco Stores

Prices include VAT, last checked 9 October at 13:06. Prices may have changed since. Advertising: some shops pay Pricuro a commission when you buy through a link. Offers are ordered by total price only; used and refurbished offers come last.

Price history

£98.45£98.54£98.62 3 Oct5 Oct7 Oct9 Oct
Lowest price per day over 7 days.
Now
£98.62
Lowest
£98.45
Average
£98.55
Highest
£98.62

Product details

Product details
BrandMSI
CategoryPC components
Barcode (EAN)4719072733667
Manufacturer part numberB550APRO
Shops compared2
Price range£98.62 – £114.90
On Pricuro since3 October 2026

Processor

4
Processor manufacturerAMD
Processor socketSocket AM4
Compatible processor seriesAMD Ryzen 3000 Series
Maximum number of SMP processors1

Memory

7
Supported memory typesDDR4-SDRAM
Number of memory slots4
Memory slots typeDIMM
Memory channelsDual-channel
ECC сompatibilityECC & Non-ECC
Supported memory clock speeds1866,2133,2400,2667,2800,2933,3000,3066,3200,3466,3600,3733,3866,4000,4133,4266,4400,4800 MHz
Maximum internal memory128 GB

Storage controllers

3
Supported storage drive typesHDD & SSD
Supported storage drive interfacesSATA III
RAID levels0, 1, 10

Graphics

4
Maximum graphics card memory16000 MB
Parallel processing technology support2-Way CrossFireX
On-board graphics cardNo
Maximum resolution4096 x 2160 pixels

Internal I/O

11
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors1
Number of SATA III connectors6
Front panel audio connectorYes
ATX Power connector (24-pin)Yes
CPU fan connectorYes
Number of chassis fan connectors6
Chassis intrusion connectorYes
TPM connectorYes
12V power connectorYes
RGB LED pin headerYes

Rear panel I/O ports

8
USB 2.0 ports quantity4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity1
Ethernet LAN (RJ-45) ports1
PS/2 ports quantity1
HDMI ports quantity1
DisplayPorts quantity1

Network

4
Ethernet LANYes
Ethernet interface typeGigabit Ethernet
LAN controllerRealtek 8111H
Wi-FiNo

Features

8
Motherboard chipsetAMD B550
Audio chipRealtek ALC892
Audio output channels7.1 channels
Product colourBlack
Component forPC
Motherboard form factorATX
Motherboard chipset familyAMD
Number of mounting holes9

Expansion slots

4
PCI Express x1 (Gen 3.x) slots2
PCI Express x16 (Gen 3.x) slots1
PCI Express x16 (Gen 4.x) slots1
Number of M.2 (M) slots2

BIOS

1
Clear CMOS jumperYes

Logistics data

1
Harmonized System (HS) code84733020

Weight & dimensions

3
Width305 mm
Depth244 mm
Height65 mm

Packaging content

2
Cables includedSATA
Drivers includedYes

Other features

1
Weight1 kg

Manufacturer data: Open Icecat

Product description

PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity. USER FRIENDLY DESIGN MSI motherboards feature tons of convenient and smart design for DIY users, countless system tuning and troubleshooting tools are at your disposal to push your system to new heights and satisfy even the most demanding tweaker. Makes it so easy to install your own motherboard without any issue. THERMAL…

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PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity.

USER FRIENDLY DESIGN

MSI motherboards feature tons of convenient and smart design for DIY users, countless system tuning and troubleshooting tools are at your disposal to push your system to new heights and satisfy even the most demanding tweaker. Makes it so easy to install your own motherboard without any issue.

THERMAL SOLUTION FOR MORE CORES AND HIGHER PERFORMANCE

With more cores’ processors, thermal and power design is more important to make sure the temperature keeps lower. MSI extended PWM heatsink with 7W/mK thermal pad ensures even high-end processors to run in full speed with MSI motherboards.

M.2 SHIELD FROZR

World’s fastest SSDs can start to lower performance when getting hot. Part of the motherboards heatsink design, M.2 SHIELD FROZR is the next generation M.2 thermal solution to avoid this by offering the best thermal protection to make sure that SSD maintains maximum performance.

FULLY CONTROLLABLE IN BIOS AND SOFTWARE

MSI motherboards let you manage speeds and temperatures for all your system and CPU fans. Total Fan Control allows you check your primary system characteristics in a simplified graphical interface. You can also set up to 4 temperature targets for CPU and motherboard, which will adjust the fan speeds automatically.

OPTIMIZED FOR WATER COOLING

Designed to support the most popular All-In-One & customized water cooling solutions on the market. A dedicated water pump PIN header supports up to 3 amp, giving you full control of the water pump speed. A clearly marked ‘keep-out-zone’ allows for easy and safe installation and a perfect fit.

EASY BIOS RECOVERY WITH FLASH BIOS BUTTON

Run into trouble when updating your BIOS? Simply flash the old BIOS version back and continue working within minutes with Flash BIOS Button. Flash BIOS Button even works without a CPU, memory or graphics card installed!

EZ DEBUG LED

Run into trouble? Onboard LEDs for key components will indicate the source of the problem so you know exactly where to look to get up and running again.

XL CLIP

The enlarged PCI-E clip helps you swap or remove your devices easier. Keep the PCI-E slot stronger and safer.

EASY TO ARRANGE YOUR CABLES

Not clever at cable arrangement? MSI Atypical PCB design not only the identity of stylish but also makes SATA and USB cable routing easier. Arranges cable neatly even you are not familiar with system build.

FORTIFY YOUR SYSTEM WITH PCI-E STEEL ARMOR

MSI PCI Express Steel Armor slots are secured to the motherboard with extra solder points and support the weight of heavy graphics cards. When every advantage in games counts, Steel Armor shields the point of contact from electromagnetic interference.

ULTIMATE MOTHERBOARD PROTECTION

Double

Frequently asked questions

Where is MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX cheapest?

Right now at PCHUB.UK for £98.62. We compare 2 offers.

How much does MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX cost?

Prices range from £98.62 to £114.90. Over the last 90 days it cost £98.55 on average.

Is now a good time to buy MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX?

Building the price history. We have only just started recording this price. After two weeks we will show here whether the current price is a good one.

Is MSI B550-A PRO motherboard AMD B550 Socket AM4 ATX in stock?

Yes, 2 shops list it as in stock.

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