Name: MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs
Brand: MSI
SKU: MBD2851
Price: 113.03 GBP
Availability: OutOfStock
Rating: 4.7 (23 reviews)

MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs

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Key Features:

ATX Form Factor
AMD B550 Chipset
Socket AM4
DDR4 (Max: 128GB / 4 slots)
2 x M.2 & 8 x USB & 6 x SATA
HDMI and Display Port

CCL Code: MBD2851

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Overview

B550-A PRO

exclusive features

Flash BIOS Button
Simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory or graphics card.

Core Boost Technology
Combining premium layout design, that is ready for unleashing the maximum performance.

2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.

Digital PWM
Highest quality component digital power IC makes sure your system runs smoothly under the most extreme conditions.

PCIe Steel Armor
Protecting VGA cards against bending and EMI for better performance, stability and strength.

B550-A PRO

PREMIUM THERMAL SOLUTION

7W/mK Thermal Pad
Preminum 7W/mK thermal pad covered both MOSFET and chokes, provides better heat transfer to the heatsink.

Extended Heatsink
MSI extended PWM heatsink and enhanced circuit design ensures even high-end processors to run in full speed.

Pump Fan Support
Control watercooling pump speeds for best flow and noise control.

M.2 Shield Frozr
Strengthened built-in M.2 thermal solution. Keeps M.2 SSDs safe while preventing throttling, making them run faster.

B550-A PRO

HIGH-SPEED TRANSMISSION

Turbo USB
Featuring the TURBO USB 3.2 GEN 2 10Gbps, with reversible Type-C connector.

DDR4 Boost
The Fully isolated DIMM slots to deliver pure data signals for the best gaming and overclocking performance.

Lightning Gen 4 Solution
The latest Gen 4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.

Core Boost

Core Boost technology combines MSI’s premium layout and digital power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, but creating the perfect conditions for your CPU overclocking.

10 +2 +1 Duet rail POWER system

Unleash and sustain maximum performance with an aggressive VRM design built with a Duet Rail Power System(DRPS). Combining exclusive Core Boost technology, PRO series motherboard is ready to sustain heavy daily work.

10 Duet Rail Power System
2 phases SOC Power
1 phase APU Power
Digital PWM IC

EXTENDED HEATSINK

Metal extended heatsink enlarge the surface of heat dissipation, ensures even high-end processors to run in full speed.

PCB WITH 2OZ THICKENED COPPER

An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking.

USB Type-C ready in both Front case panel & Rear IO

Get all the performance benefits from the USB Type-C connector. This reversible USB connector allows for effortless connecting of USB devices.

LIGHTNING GEN4 M.2 WITH M.2 SHIELD FROZR

Cooling your NVMe SSD delays throttling which results in higher overall performance. Part of the motherboards heatsink design which helps avoid SSD throttling by offering the best thermal protection.

LIGHTNING GEN 4 SOLUTION

The latest Gen4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed. PCIe 4.0 maintains both backward and forward compatibility with older and newer specifications.

UNMATCHED MEMORY PERFORMANCE

MSI motherboards are crammed with features to fuel your system’s memory with more speed, higher overclockability and increased stability. Optimized traces and a fully isolated memory circuitry ensures perfect stability and performance, so you never have to worry about your system crashing.

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.

MULTIPLE GPU SUPPORTS AND STEEL ARMOR

B550-A PRO supports multiple GPU solution. Optimal PCI-Express slot placement allows for better fitting and airflow. That way, you can enjoy the best graphics at the highest framerate jumping from your screen when running an AMD^® CrossFire^™ setup

Steel Armor has more solder points on the PCB for more strength and protects the PCI-Express signals against electromagnetic interference for a stutter-free user experience.

Main Features

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
Audio Boost: Reward your ears with studio grade sound quality
Multi-GPU: With Steel armor PCI-E slots. Supports 2-Way AMD Crossfire
Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface.

Specifications

CPU

CPU Socket	Socket AM4
CPU Brand	AMD
Installed Processors (Max)	0 (1)
Supported Processor Manufacturer	AMD
Supported Processors	3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update
64-bit Support	Yes
Socket	AM4

Rear Panel I/O Ports

USB Ports	1 x USB 3.1 Type-C 1 x USB 3.0 Type-A 2 x USB 3.0 4 x USB 2.0
DisplayPorts	1 x DisplayPort
HDMI Port	1 x HDMI
Keyboard/Mouse Combo Port	1 x PS/2
RJ-45 Ports	1 x RJ-45
Audio Line In Ports	1 x 3.5mm Jack
Audio Line Out Ports	4 x 3.5mm Jacks
Microphone In Port	1 x 3.5mm Jack

Internal I/O Connectors

SATA Connectors	6 x SATA III
USB Connectors	1 x USB 3.0 Type-C header 1 x USB 3.0 header (supports 2 ports) 2 x USB 2.0 headers (supports 4 ports)
Front Panel Connectors	1 x Front Panel 1 x Front Audio
Cooling Fan Support	1 x CPU fan header 1 x Water Pump fan header 6 x System fan headers
Chassis Intrusion Connector	1 x Chassis Intrusion header
TPM Header	1 x TPM header
Power Connector Port	1 x 20+4-pin ATX 1 x 4+4-pin EPS
Other Connectors	1 x M.2, Socket 3, M Key (Type 2242/2260/2280/22110) 1 x M.2, Socket 3, M Key (Type 2242/2260/2280) 1 x RGB LED header 2 x Addressable LED headers

Memory

Memory Bus Speed	2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400+ MHz
Memory Type	DDR4
Maximum RAM	128 GB
Memory Slot	4 x DIMM

Motherboard

Chipset Manufacturer	AMD
Northbridge	B550
RAID Supported	Yes
RAID Format	RAID 0, 1, 10
SATA Supported	Yes

Expansion

Number of PCI Express Slots

1 x PCI Express 4.0 x16
1 x PCI Express 3.0 x16 (@ x4)
2 x PCI Express 3.0 x1

Graphics Device

Integrated Graphics Supported

Yes

Warranty

3 Years

Sound

Integrated Sound

Realtek ALC892

Network

Integrated Network	Realtek 8111H
Network Speeds Supported	10/100/1000 Mbps
Wireless LAN	No
Bluetooth	No

System Requirements

Operating Systems Supported

Microsoft Windows 10 64-bit

System

Jumpers	1 x Clear CMOS
Software Included (may be trial or restricted)	Yes
Drivers	Yes
SLi/Crossfire Features	Supports 2-Way AMD CrossFire Technology

Physical

Form Factor	ATX Motherboard
In The Box	B550-A PRO Motherboard Case Screw Guide Quick Installation Guide MSI Case Badge 2 x SATA Cables Driver DVD Product Registration Card I/O Shield Promotion Card
Width	305 mm
Length	244 mm

Key Features

Firewire	No
Wireless Network	No
Motherboard Width	244 mm
Motherboard Height	305 mm
mSATA Supported	No
U.2 Supported	No
Memory Channel	Dual
On-board Audio Type	7.1
Number of SATA Ports	6 port(s)
Number of USB Ports	8 port(s)
SATA III Support	Yes
USB 3.0 Support	Yes
Multi GPU Support	ATi CrossFire
VGA Connection	No
DVI Connection	No
HDMI Connection	Yes
DisplayPort Connection	Yes
Motherboard Form Factor	ATX
Motherboard (EPS) Power Connectors	4+4-Pin
Motherboard Chipset	AMD B550
Thunderbolt	No
Motherboard Model	MSI B550-A PRO
USB 3.1 Support	Yes
Internal USB3.0 Header	Yes
M.2 Support	Yes
On-board RGB Control	MSI Mystic Sync
Memory Speed	4400 MHz
RGB Header Type	3-Pin ARGB
Addressable RGB	Yes
Internal USB Type-C Header	Yes
Power Requirement (auto)	70 W
Max Memory Speed Supported (Non-overclocked)	3200 MHz
Max Memory Speed Supported (overclocked)	4800 MHz
CPU Power Pins (female)	8
Total M.2 Slots	2
Maximum NVMe M.2 ports	2
Maximum SATA M.2 ports	1
SATA ports	6
No. of front USB2.0 ports supported	4
No. of front USB3.0 ports supported	2
No. of front USB-C ports supported	1

Item Details

Manufacturer	MSI
Manufacturer Code	B550-A PRO
EAN	4719072733667
UPC	824142219362
Condition	New

Warranty

Warranty Information

Warranty

3 Years

Manufacturer Information

Manufacturer	MSI
Manufacturer Code	B550-A PRO

Reviews

4.7 / 5 23 reviews

Luke

8 months ago

It's bloodeh amazin and does what it sez on the tin. Really great MoBo

Nino

8 months ago

Great quality

Eugene Pogson

10 months ago

Worth every penny

Mark T

10 months ago

Excellent motherboard but the positioning of the SATA ports makes it difficult for me to plug things in and out as my drive bays are there. Vertical ports would have been better in my view. I've upgraded the bios twice now with no issues. I would buy the board again.

Phil Wrigley

11 months ago

Easy to install, worked first time without any messing with Bios, but Bios settings are a little limited.

Bryn jones

January 2023

Great motherboard, easy to install and configure

Dave

January 2023

Great product, pleased

Brett N

December 2022

probably the best budget full size ATX B550 motherboard around

Christopher

December 2022

Very nice board that doesn't break the bank and has all the features that matter. I wish it came with a manual for the BIOS that explains what everything does, though.

Bradley

November 2022

Good value for use in a decent gaming pc

Jake

November 2022

Did everything I needed it to.

Ryan

March 2022

Good looking board. All the features for gaming and well priced. Not worth spending more on another board.

Andrew

November 2021

Board is nice. BIOS is a bit Dystopian Disneyland but that's not board-specific.

Jairo

October 2021

Good value Basic Motherboard.

Samuel

July 2021

Easy to setup and use - didn't include a physical copy of the manual though which is why I knocked a star off (would have been helpful!).

Stewart

February 2021

Excellent motherboard, documentation is second to none, and performance is brilliant

Konstantinos

February 2021

Quite a good MoBo with decent capabilities for OC (good Japanese VRMs decent heatsinks) and a good number of SATA and USB ports. Motherboard prices have been increasing, thus the price was higher than it used to be, although it was the cheaper I found. Arrived promptly together with the rest of the components.

Sam

February 2021

Great board, looks great, good compatability. Especially like the BIOS update feature, just remember to remove the CPU!

Simon Merrill

February 2021

Great board with a Ryzen 5600 and HyperX FURY RGB 16GB (2x8GB) 3200MHz DDR4 Memory Kit.

Kevin F

February 2021

Good value, all the features you need in a motherboard, nice metal heatsinks, and pleasing all-black design

Duaine

February 2021

Great product for the money

Luke

February 2021

Haven't had any problems with CCL and that's all you can ask for. My motherboard was a good price and shipping was free, took a week to arrive which is longer than SCAN's delivery but then you pay for that premium. Communication is clear - can't not recommend CCL.

Peter

November 2020

This motherboard is definitely at the lower end of the price bracket and comes with some good features like a strengthened pcie slot and comes with 8 power phases. That is a rarity in this low end priced boards and is usually found in the mid range instead.