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MSI B550M-A Pro AM4 Micro ATX AMD Motherboard
MSI B550M-A Pro AM4 Micro ATX AMD Motherboard
MSI B550M-A Pro AM4 Micro ATX AMD Motherboard
MSI B550M-A Pro AM4 Micro ATX AMD Motherboard
MSI B550M-A Pro AM4 Micro ATX AMD Motherboard
MSI B550M-A Pro AM4 Micro ATX AMD Motherboard
MSI B550M-A Pro AM4 Micro ATX AMD Motherboard

MSI B550M-A Pro AM4 Micro ATX AMD Motherboard

$99.00

(254 reviews)

MSI B550M-A PRO Motherboard (AMD Ryzen 3000 3rd Gen AM4, DDR4, M.2, USB 3.2 Gen 1, HDMI, Micro ATX)

MSI B550M-A PRO Motherboard (AMD Ryzen 3000 3rd Gen AM4, DDR4, M.2, USB 3.2 Gen 1, HDMI, Micro ATX)

MSI B550M-A Pro AM4 Micro ATX AMD Motherboard

(254 reviews)

MSI B550M-A PRO Motherboard (AMD Ryzen 3000 3rd Gen AM4, DDR4, M.2, USB 3.2 Gen 1, HDMI, Micro ATX)

MSI B550M-A PRO Motherboard (AMD Ryzen 3000 3rd Gen AM4, DDR4, M.2, USB 3.2 Gen 1, HDMI, Micro ATX)

$99.00 - $743.99

in 34 offers

The lowest price for MSI B550M-A Pro AM4 Micro ATX AMD Motherboard right now is $99.00 at JW Computers, compared across 26 retailers.

The all-time low was $7.83 on 30 Nov 2025 — today's price is 1164% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 9 June 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 09/06/2026 17:11:50

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
JW Computers

$99.00

MSI B550M-A Pro AM4 Micro ATX Motherboard

Delivery between Thu – Tue $12

PCByte AU

$99.00

MSI B550M-A PRO AM4 mATX Motherboard (B550M-A PRO)

Centre Com

$99.00

MSI B550M-A PRO AM4 m-ATX Motherboard

Delivery between Thu – Tue $19.98

Umart

$99.00

MSI B550M A PRO AM4 mATX Motherboard B550M A PRO - AMD AM4

Delivery $14.01

MSY

$99.00

MSI B550M A PRO AM4 mATX Motherboard B550M A PRO - AMD AM4

Delivery $13

umklogix.com

$101.00

MSI B550M-A PRO Motherboard (DDR4 RAM support)

Free delivery between 16–19 June

Dick Smith AU

$104.00

MSI B550M-A PRO AM4 mATX Motherboard (B550M-A PRO)

14-day returns

Dick Smith AU

$121.39

MSI B550M-A PRO Motherboard AMD Ryzen AM4, 2xDDR4, support up to 64GB, 1xPCIe 4.0/3.0 x16 slot, 2xSATA 6Gb, 6xUSB3.0, 6xUSB2.0, DVI-D, HDMI

14-day returns

Dick Smith AU

$131.36

MSI B550M-A PRO Motherboard, for AMD CPU, DDR4, AM4, Micro-ATX MB

Free delivery

Dick Smith AU

$131.56

MSI B550M-A PRO Motherboard, for AMD CPU, DDR4, AM4, Micro-ATX MB

14-day returns

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

10 August 2021

originally posted on Google Customer Reviews

Cheap and cheerful motherboard, very basic but functional.Box said Ryzen 5000 compatible, but did not work with a Ryzen 5 5600G.Only compatible BIOS is a beta BIOS.Therefore I swapped CPU's with another system I have. The 5600G fitted straight in to my Asus board as a compatible BIOS has been out a while.MSI need to be quicker with their BIOS updates.

!!!Be carful!!! if use with 5000 AMD series
6 January 2022Anonymous

originally posted on newegg.com

I read that this motherboard was compatible with the 5600G that I bough with a bios update but that part was a nightmare. If you are using AMD 5000 series with a integrate video processor (Serie G) the motherboard will not post because the bios version E7C96AMS.260 (12/13/2021) is not able to recognized this graphic processor and the light will stay on saying CPU error on the board. I do not know if the series 5000 whiteout the integrate graphic will have work but I assume that it won't. To update the bios your ONLY options is to use a CPU series 3000 but again be carful, not all 3000 is supported. For myself I hopefully had a 3600 laying around so I was able to installed bios version E7C96AMS.260 (12/13/2021). With this bios version my 5600G was able to post after ... MoreI read that this motherboard was compatible with the 5600G that I bough with a bios update but that part was a nightmare. If you are using AMD 5000 series with a integrate video processor (Serie G) the motherboard will not post because the bios version E7C96AMS.260 (12/13/2021) is not able to recognized this graphic processor and the light will stay on saying CPU error on the board. I do not know if the series 5000 whiteout the integrate graphic will have work but I assume that it won't. To update the bios your ONLY options is to use a CPU series 3000 but again be carful, not all 3000 is supported. For myself I hopefully had a 3600 laying around so I was able to installed bios version E7C96AMS.260 (12/13/2021). With this bios version my 5600G was able to post after what have look like an eternity at the first boot (and yes that is completely normal). So overall, make yourself a big favor by buying a better motherboard if you wanna go with AMD 5000 series. Buy one with a Q-flash bottom if you don't want to be stock like me. For a 3000 series I suppose this motherboard is just fine for the price.

Good MB for the budget but the my GPU does not allows me to connect the frontal usb cables as tha...
20 September 2021Juan M.

originally posted on homeessentialsdirect.com

Good MB for the budget but the my GPU does not allows me to connect the frontal usb cables as that slot is too close to the PCIe slot for GPU, it's literally impossible to connect them without getting my case cables interfering or getting in the GPU fans, that is so annoying even tho my GPU is an RTX 3070 MSI Venus 2x and that is not what you would call a big chungus card. that's the reason why i'm giving it 3 stars instead of 4, I'm not able to connect any usb ports cables on that slot anymore unless i change my gpu, and considering the times of shortages we are experiencing, that's not gonna happen in at least 3 years.

Specification

General
Product TypeMotherboard - micro ATX
Chipset TypeAMD B550
Processor SocketSocket AM4
Max Processors Qty1

Price comparison

Updated 3 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
JW Computers

$99.00

MSI B550M-A Pro AM4 Micro ATX Motherboard

Delivery between Thu – Tue $12

PCByte AU

$99.00

MSI B550M-A PRO AM4 mATX Motherboard (B550M-A PRO)

Centre Com

$99.00

MSI B550M-A PRO AM4 m-ATX Motherboard

Delivery between Thu – Tue $19.98

Umart

$99.00

MSI B550M A PRO AM4 mATX Motherboard B550M A PRO - AMD AM4

Delivery $14.01

MSY

$99.00

MSI B550M A PRO AM4 mATX Motherboard B550M A PRO - AMD AM4

Delivery $13

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

10 August 2021

Cheap and cheerful motherboard, very basic but functional.Box said Ryzen 5000 compatible, but did not work with a Ryzen 5 5600G.Only compatible BIOS is a beta BIOS.Therefore I swapped CPU's with another system I have. The 5600G fitted straight in to my Asus board as a compatible BIOS has been out a while.MSI need to be quicker with their BIOS updates.

originally posted on Google Customer Reviews
!!!Be carful!!! if use with 5000 AMD series
6 January 2022

I read that this motherboard was compatible with the 5600G that I bough with a bios update but that part was a nightmare. If you are using AMD 5000 series with a integrate video processor (Serie G) the motherboard will not post because the bios version E7C96AMS.260 (12/13/2021) is not able to recognized this graphic processor and the light will stay on saying CPU error on the board. I do not know if the series 5000 whiteout the integrate graphic will have work but I assume that it won't. To update the bios your ONLY options is to use a CPU series 3000 but again be carful, not all 3000 is supported. For myself I hopefully had a 3600 laying around so I was able to installed bios version E7C96AMS.260 (12/13/2021). With this bios version my 5600G was able to post after ... MoreI read that this motherboard was compatible with the 5600G that I bough with a bios update but that part was a nightmare. If you are using AMD 5000 series with a integrate video processor (Serie G) the motherboard will not post because the bios version E7C96AMS.260 (12/13/2021) is not able to recognized this graphic processor and the light will stay on saying CPU error on the board. I do not know if the series 5000 whiteout the integrate graphic will have work but I assume that it won't. To update the bios your ONLY options is to use a CPU series 3000 but again be carful, not all 3000 is supported. For myself I hopefully had a 3600 laying around so I was able to installed bios version E7C96AMS.260 (12/13/2021). With this bios version my 5600G was able to post after what have look like an eternity at the first boot (and yes that is completely normal). So overall, make yourself a big favor by buying a better motherboard if you wanna go with AMD 5000 series. Buy one with a Q-flash bottom if you don't want to be stock like me. For a 3000 series I suppose this motherboard is just fine for the price.

Anonymous originally posted on newegg.com
Good MB for the budget but the my GPU does not allows me to connect the frontal usb cables as tha...
20 September 2021

Good MB for the budget but the my GPU does not allows me to connect the frontal usb cables as that slot is too close to the PCIe slot for GPU, it's literally impossible to connect them without getting my case cables interfering or getting in the GPU fans, that is so annoying even tho my GPU is an RTX 3070 MSI Venus 2x and that is not what you would call a big chungus card. that's the reason why i'm giving it 3 stars instead of 4, I'm not able to connect any usb ports cables on that slot anymore unless i change my gpu, and considering the times of shortages we are experiencing, that's not gonna happen in at least 3 years.

Juan M. originally posted on homeessentialsdirect.com
I had a hard time finding the m2 screws, it was in a smaller litle bag Other than that no problem...
3 March 2021

I had a hard time finding the m2 screws, it was in a smaller litle bag Other than that no problems with the actual motherboard.

originally posted on homeessentialsdirect.com
Save yourself the heartache, this motherboard can’t turn itself off
24 January 2021

I was originally unable to power down without holding down the power button! Windows is unable to put a machine with this motherboard to sleep. I thought it was an issue when the installer stalled for an hour but it was because the motherboard refused to power down in order to restart. This problem persisted after installation where a windows shutdown does not power down the machine. I am incredibly frustrated by this purchase. I’ve updated the motherboard bios, double checked my header pins and windows configuration it’s definitely an issue with the motherboard itself. Update: Using the beta version of the bios fixed my issue

Anonymous originally posted on neweggbusiness.com
Simple but too simple?
5 February 2021

I get it, it is a cheap MOBO, having said that it works as advertised just not for me or my builds. If you need a good replacement MOBO this is a great place to start. Just FYI it came with the newest BIOS update to support the new Ryzen CPU's.

Jared S. originally posted on neweggbusiness.com
Works exactly as you would expect. But there are who that's that I am disappointed about: Since t...
3 July 2021

Works exactly as you would expect. But there are who that's that I am disappointed about: Since the pcie slot is the 2nd slot on this board, larger GPUs will interfere with the front panel USB 3 connection. There are only two fan connections. One cpu and one system

Home Essentials Direct Customer originally posted on homeessentialsdirect.com

Specification

General
Product TypeMotherboard - micro ATX
Chipset TypeAMD B550
Processor SocketSocket AM4
Max Processors Qty1

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