- 17%

MSI B550-A PRO

Original price was: $119.99.Current price is: $99.66.

(8 customer reviews)
Last updated on August 9, 2022 12:27 am
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Highest Price
$79.99 eBay
April 4, 2025
Lowest Price
$79.99 eBay
April 4, 2025
Current Price
$99.66 Walmart.com
August 9, 2022
Since April 4, 2025
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Specification: MSI B550-A PRO

Product
Brand

Model

B550-A PRO

Product Type

AMD

Specification
Best Seller Ranking

#14 in AMD Motherboards

Other Connectors

1 x 4-pin CPU fan connector1 x 4-pin water-pump fan connector6 x 4-pin system fan connectors1 x Front panel audio connector2 x System panel connectors1 x Chassis Intrusion connector1 x 4-pin RGB LED connector2 x 3-pin RAINBOW LED connectors1 x TPM module connector1 x Clear CMOS jumper

Onboard Video Chipset

Supported only by CPU with integrated graphic

Audio Chipset

Realtek ALC892/ALC897

Audio Channels

7.1 Channels

LAN Chipset

Realtek RTL8111H

Max LAN Speed

10/100/1000Mbps

Back IO Ports

1 x DisplayPort1 x HDMI1 x LAN (RJ45)1 x PS/2 Keyboard/Mouse Combo1 x USB 3.2 Gen 2 Type-A1 x USB 3.2 Gen 2 Type-C2 x USB 3.2 Gen 1 Type-A4 x USB 2.0/1.16 x Audio JacksFlash BIOS Button

M.2

2 x M.2 slots (Key M):M2_1 slot (from AMD Processor):Supports PCIe 4.0/3.0 x4 *Supports SATA 6Gb/sSupports 2242/2260/2280/22110 storage devicesM2_2 slot (from AMD B550 chipset):Supports PCIe 3.0 x4Supports 2242/2260/2280 storage devices* The supported specification depends on installed processor.

Onboard USB

1 x USB 3.2 Gen 1 5Gbps Type-C port1 x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)2 x USB 2.0 connectors (supports additional 4 USB 2.0 ports)

Form Factor

ATX

LED Lighting

RGB

Dimensions W x L

12.0" x 9.6"

Power Pin

1 x 24-pin ATX main power connector1 x 8-pin ATX 12V power connector

Windows 11

Supported

Features

Supports AMD Ryzen 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen 5 3400G & Ryzen 3 3200G) and AMD Ryzen 4000 G-Series desktop processorsSupports DDR4 Memory, up to 4400(OC) MHzLightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2Premium 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 worksPowerful Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, Creator Genie, DDR4 BoostAudio Boost: Reward your ears with studio grade sound qualityMulti-GPU: With Steel armor PCI-E slots. Supports 2-Way AMD CrossfireDragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface

SATA RAID

0/1/10

Memory Standard

1866 by JEDEC1DPC 1R Max speed 48001DPC 2R max speed 38662DPC 1R max speed 40002DPC 2R max speed 3600, 2133, 2400, 2667, 2667 (by A-XMP OC MODE)DDR4 3200, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, DDR4 4400+

SATA 6Gbs

6 x SATA 6Gb/s

PCI Express x1

2 x PCIe 3.0 x1

PCI Express 3.0 x16

1 x PCI Express 3.0 x16** Supports x4 speed.* When installing PCIe SSD in M.2_2, PCI_E3 slot will be unavailable.

PCI Express 4.0 x16

1 x PCI Express 4.0 x16** Actual support may vary by CPU.

Buffer Supported

Un-buffered

Channel Supported

Dual Channel

Number of Memory Slots

4x288pin (DDR4)

Chipset

AMD B550

Series

PRO

Date First Available

March 10, 2022

Max Memory Supported

128GB

CPU Socket

AM4

CPU Support

3000 Series* processors* Not compatible with AMD Ryzen 5 3400G & Ryzen 3 3200G., 4000 G-Series, Supports AMD Ryzen 5000 Series

ECC

Non-ECC

Photos: MSI B550-A PRO

8 reviews for MSI B550-A PRO

4.4 out of 5
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  1. Robert

    Pros: -Easy debugging LED lights for troubleshooting POST failures -Very sleek but not to flashy design -Worked with my 3rd gen AMD Ryzen processor without the need for a BIOS update Cons: -The only real quirk I have noticed is occasionally the debug LEDs can get stuck in the lit up state even after a successful POST and boot into windows. I dont know what causes this to happen but 99% of the time they work as intended. Overall Review: MSI has never failed to deliver a quality product in my…

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  2. product reviewer

    Pros: The style is beautiful extremely fast board perfect to fit great amounts of ram has everything you need Overall Review: great product 10 out of 10!

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  3. lrjjr5

    Pros: VRM’s are better than b350 Tomahawk. Board looks way better than pics . heat sinks are massive. Fan headers all all over this board. plus RGB headers. 2 3 pin RGB and 1 5 pin RBG header. M.2 slot comes with a heat sink saves $ there. Cons: Manual in the box would have saved time. glad is not only pc in the house. I get most people look things up online and down load what you need. but no manual and yet a driver CD Rom. go figure. Overall Review: I got this board when it first came out…

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  4. Sugaajg

    Pros: -PCIE express 4.0 -simple bios -6 sata ports -6 fan headers (one is in center of motherboard so hard to route cable) -rgb pins – good temps – easy install and looks great Cons: -clearance is tight with top case fans -thats it like it works good Overall Review: mid-range to high-end parts. Everything you need on a motherboard without rgb on it. Looks better than you think.

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  5. Anonymous

    Pros: -Looks great. Black, no LOOK AT ME features -Supported my Ryzen 3600 with B550 right out of the box. Even if it didn’t, it has the ability to flash BIOS without a CPU -Can accept a lot of RAM speeds. Was able to re-use my old 2400Mhz RAM until I buy newer. -Supports ECC RAM in non-ECC mode. That’s crazy. Never heard of that before. ECC RAM can be super cheap on second-hand auction sites -Lots of fan headers. More than I need -M.2 screws DID work for me. -Saved $$$ not getting…

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  6. Gbenga G

    Pros: Well it was able to handle all my components like I planned so that went well. Cons: The heat sync for the VRAM was broken off. The plastic literally snapped, some spring was nowhere to be found and the other was there but still detached. Overall Review: Truthfully the only reason that I didn’t send it back immediately is because I was lowkey impatient after all the time, so I was luckily able to get plastic spacers and springs of my own from a hardware store and it works so there’s that.

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  7. S

    Overall Review: The first board I got was dead on arrival. The return process was not a problem itself but it delayed my build for a few days, which was frustrating. No problems with the board itself once I got a working one.

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  8. Ryan E.

    Pros: – Very Fair price for functionality/OC support – M2 heat sink – non flashy RGB – so many DRM capable fan headers – VRM temps nice and cool under load – This board came with a stand off warning paper, as to not short/damage the board (needs only 9 standoffs, instead of all for ATX form factor) -EUFI hardware monitored is extremely detailed Cons: Not all of these are CONS, but rather room for improvement in my opinion: – During the bios update process, found some incompatibility with USB…

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    MSI B550-A PRO

    Original price was: $119.99.Current price is: $99.66.

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