PrologyParts Index

MSI B550-A PRO

MB, B550, 4x DDR4, 1x PCIE4.0 x16, 1x PCIE3.0 x16, 6x SATA3, 2x M.2, 7x USB

MPNB550-A PROMSIOtherUpdated

Key facts

Part number
B550-A PRO
Brand
MSI
Category
Other
Price
AUD 233.20≈ USD 161 Reference price (RRP)
Availability
On request — ask for a quote

Overview

B550-A PRO MB, B550, 4x DDR4, 1x PCIE4.0 x16, 1x PCIE3.0 x16, 6x SATA3, 2x M.2, 7x USB 3.2, DisplayPort, HDMI, ATX

PRO SERIES

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.

  • DisplayPort transmits both audio and video signals through a common channel to deliver versatile performance
  • Retrieve a significant number of PCI slots, expansion slots, and peripheral ports that have an enhanced heat dissipation capability with the ATX desktop motherboard
  • HDMI interface enables the user to experience a fantastic sound/video quality at the expense of a single cable
  • DDR4 SDRAM compatible slot - Install memory that synchronizes electrical and clock signals for an efficient data throughput
  • RAID supported levels provide data reliability and fault tolerance
  • 4 USB 2.0 ports offer the impressive data transfer speed of up to 60 Mb/sec
  • Compatible Ryzen 3 processor lets you perform all your computational tasks at a swift pace

Specifications

General

Audio Channels
7.1
Gigabit Ethernet
Yes
Onboard Video
CPU Dependent Video
Controller Type
Serial ATA/600
RAID Supported
Yes
Form Factor
ATX
Width
304.8 mm
Depth
243.8 mm
Number of PCI Express x1 Slots
2
Number of PCI Express x16 Slots
2
Total Number of PCI Express Slots
4
Total Number of Expansion Slots
4.0
Maximum Memory Supported
128 GB
Number of Memory Slots
4
Memory Form Factor
UDIMM

DIMM

Number of SATA Interfaces
6
Total Number of Onboard USB Ports
7
Number of Onboard USB 2.0 Ports
4
Number of M.2 Interfaces
2
Number of Onboard USB 3.2 Ports
3
HDMI
Yes
Number of Network (RJ-45) Ports
1
DisplayPort
Yes
Total Number of USB Ports
8
Number of USB 2.0 Ports
4
Number of USB 3.2 Ports
4
Processor Supported
Ryzen 9

Ryzen 3

Total Processor Supported
1
Chipset Manufacturer
AMD
Multi GPU Supported
CrossFire
Product Type
Desktop Motherboard

Manufacturer Website Address

Manufacturer
MSI
Product Model
B550-A PRO
Product Name
B550-A PRO Desktop Motherboard
Product Series
PRO
Brand Name
MSI

Reference price history

Recorded reference and list prices over time. Not Prology selling prices.

Latest
AUD 233.20≈ USD 161
Oct 2026
Lowest recorded
AUD 233.20≈ USD 161
Highest recorded
AUD 233.20≈ USD 161
Recorded
2026
1 price point

AUD 233.20 rrp, recorded

Buy or sell MSI B550-A PRO

Buying MSI

Looking to buy the MSI B550-A PRO? Prology supplies new, refurbished and used MSI in Australia and the United States. Send the part number and quantity for a firm price.

Selling MSI

Have a spare or decommissioned B550-A PRO? Prology buys used and surplus MSI — single units or whole lots — and replies with an offer within 1 business day. Sell your B550-A PRO.

What is the MSI B550-A PRO?
The MSI B550-A PRO is an IT hardware part from MSI – MB, B550, 4x DDR4, 1x PCIE4.0 x16, 1x PCIE3.0 x16, 6x SATA3, 2x M.2, 7x USB 3.2.
How much does the MSI B550-A PRO cost?
The reference price on record is AUD 233.20 (Oct 2026). It is a reference figure, not a selling price — ask Prology for a firm quote.
Where can I buy the MSI B550-A PRO?
It is not listed on the Prology store yet. Prology sources MSI on request — request a quote and we reply with a firm price and lead time within 1 business day.
Can I sell a used MSI B550-A PRO?
Yes. Prology buys used and surplus MSI, including the B550-A PRO. Get an offer — sell outright or trade in against your next order.

Request a quote for B550-A PRO

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