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MSI

MSI B550M PRO Desktop Motherboard - AMD Chipset - Socket AM4

$99.99
$99.97 SAVE $0.02
None availableas of 09/29/2026

Ships when available. Free shipping on most items when you spend $100 or more.

Special orders typically ship in 1-12 weeks.

Country of origin

  • Origin: China
Rated excellent by our customers Read our reviews

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

MSI B550M PRO 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.

Technical specifications

General Information

Manufacturer MSI
Manufacturer Part Number B550MPRO
Manufacturer Website Address http://www.msi.com
Brand Name MSI
Product Series PRO
Product Model B550M PRO
Product Name B550M PRO Desktop Motherboard
Product Type Desktop Motherboard

Processor & Chipset

Chipset Manufacturer AMD
Chipset Model B550
Total Processor Supported 1
Processor Socket Socket AM4
Processor Supported Ryzen 9Ryzen 7Ryzen 7 PRORyzen 5Ryzen 5 ProRyzen 3Ryzen 3 PRO

Memory

Number of Memory Slots 2
Memory Form Factor DIMMUDIMM
Maximum Memory 64 GB
Memory Technology DDR4 SDRAM
Memory Speed Supported 1866 MHz2800 MHz3200 MHz2667 MHz3066 MHz2400 MHz3000 MHz2133 MHz2933 MHz4400 MHz4000 MHz4266 MHz3466 MHz3866 MHz4133 MHz3733 MHz3600 MHz4600 MHz

I/O Controller

Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 1100

Video

Onboard Video CPU Dependent Video

Audio

Audio Channels 7.1

Network & Communication

Gigabit Ethernet Yes

I/O Expansions

Total Number of Expansion Slots 3
Total Number of PCI Express Slots 3
Number of PCI Express x1 Slots 2
Number of PCI Express x16 Slots 1

Interfaces/Ports

Total Number of USB Ports 6
Number of USB 2.0 Ports 2
Number of USB 3.2 Ports 4
HDMI Yes
DisplayPort Yes
Number of Network (RJ-45) Ports 1

Onboard Interfaces

Number of SATA Interfaces 4
Number of M.2 Interfaces 1
Total Number of Onboard USB Ports 6
Number of Onboard USB 2.0 Ports 4
Number of Onboard USB 3.2 Ports 2

Physical Characteristics

Form Factor Micro ATX
Width 9.6"
Depth 7.9"

Miscellaneous

Package Contents
  • B550M PRO Desktop Motherboard
  • Quick Installation Guide
  • MSI Case Badge
  • 2 x SATA Cables
  • Product Registration Card
  • I/o Shielding
  • Dricer DVD
  • Promotion Card
Country of Origin China

Warranty

Limited Warranty 3 Year

Ratings and reviews

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Special order item. This item ships direct from the manufacturer and cannot be cancelled once ordered. If you have any questions before ordering, ask us first: chat with us or call 1-800-692-8757.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.