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MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs

MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs

CCL Code: MBD2851

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  • MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs
  • MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs
  • MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs
  • MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs
  • MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs
  • MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs

Grab a free Lian Li anti-sag bracket with every ATX motherboard purchase!**

MSI B550-A PRO ATX Motherboard for AMD AM4 CPUs

B550-A PRO

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
MSI B550-A PRO CORNERSTONE overview
MSI Flash BIOS Button Flash BIOS Button
Simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory or graphics card.
MSI Core Boost Technology Core Boost Technology
Combining premium layout design, that is ready for unleashing the maximum performance.
MSI 2oz Thickened Copper PCB 2oz Thickened Copper PCB
An enhanced PCB design improves heat dissipation and performance reliability.
MSI Digital PWM Digital PWM
Highest quality component digital power IC makes sure your system runs smoothly under the most extreme conditions.
MSI PCIe Steel Armor PCIe Steel Armor
Protecting VGA cards against bending and EMI for better performance, stability and strength.
 
B550-A PRO
PREMIUM THERMAL SOLUTION
MSI B550-A PRO THERMAL overview
MSI 7W/mK Thermal Pad 7W/mK Thermal Pad
Preminum 7W/mK thermal pad covered both MOSFET and chokes, provides better heat transfer to the heatsink.
MSI Extended Heatsink Extended Heatsink
MSI extended PWM heatsink and enhanced circuit design ensures even high-end processors to run in full speed.
MSI Pump Fan Support Pump Fan Support
Control watercooling pump speeds for best flow and noise control.
MSI M.2 Shield Frozr 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
MSI B550-A PRO LIGHTNING overview
MSI Turbo USB Turbo USB
Featuring the TURBO USB 3.2 GEN 2 10Gbps, with reversible Type-C connector.
MSI DDR4 Boost DDR4 Boost
The Fully isolated DIMM slots to deliver pure data signals for the best gaming and overclocking performance.
MSI Lightning Gen 4 Solution Lightning Gen 4 Solution
The latest Gen 4 PCI-E and M.2 solution with up to 64GB/s bandwidth for maximum transfer speed.
 
MSI B550-A PRO & 7G07R
 
MSI B550-A PRO CORE BOOST
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.
 
MSI B550-A PRO 10 +2 +1 Duet rail POWER system
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
 
MSI B550-A PRO EXTENDED HEATSINK
EXTENDED HEATSINK
Metal extended heatsink enlarge the surface of heat dissipation, ensures even high-end processors to run in full speed.
 
MSI B550 -A PRO PCB WITH 2OZ THICKENED COPPER
PCB WITH 2OZ THICKENED COPPER
An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking.
 
MSI B550-A PRO USB Type-C ready in both Front case panel & Rear IO
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.
 
MSI B550-A PRO LIGHTNING GEN4 M.2 WITH M.2 SHIELD FROZR
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.
 
MSI B550 -A PRO LIGHTNING GEN 4 SOLUTION
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.
 
MSI B550-A PRO UNMATCHED MEMORY PERFORMANCE
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.
 
MSI B550-A PRO EASY TO ARRANGE YOUR CABLES
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.
 
MSI B550-A PRO MULTIPLE GPU SUPPORTS AND STEEL ARMOR
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.
Promotions

GRAB A SOUGHT-AFTER PC ACCESSORY FREE WITH EVERY ATX MOTHERBOARD!

For a limited time, every purchase of an ATX motherboard qualifies for a 100% discount on a Lian Li GB-002 anti sag bracket, one of the better methods to keep your shiny new graphics card from succumbing to gravity!! Simply add the bracket to your basket alongside the motherboard and discount will be applied.

CLICK TO VIEW AND ADD THE LIAN LI GB-002 TO YOUR BASKET

Bracket advertised as compatible with ATX/eATX motherboards, however high-end boards with large thermal-shielding may interfere with mounting compatibility.

Offer valid 25th December to 31st January, and whilst stocks last.

Bracket

Lian Li GB-002 Anti Sag Bracket for Graphics Cards

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

Sound

Integrated Sound Realtek ALC892

Warranty

Warranty 3 Years

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

M.2 Support Yes
On-board RGB Control MSI Mystic Sync
Memory Speed 4400 MT/s
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 MT/s
Max Memory Speed Supported (overclocked) 4800 MT/s
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
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

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

August 2023

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

Nino

August 2023

Great quality

Eugene Pogson

June 2023

Worth every penny

Mark T

June 2023

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

June 2023

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.

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