• MSI B550-A PRO Desktop Motherboard - AMD Chipset - Socket AM4 - ATX
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX 300/500
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX Alternate-Image1/500
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX Alternate-Image2/500
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX Alternate-Image3/500
  • MSI B550-A PRO Desktop Motherboard - AMD Chipset - Socket AM4 - ATX
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX 300/500
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX Alternate-Image1/500
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX Alternate-Image2/500
  • MSI B550 A PRO Desktop Motherboard   AMD Chipset   Socket AM4   ATX Alternate-Image3/500

Shipping Information

The shipping process is fully robotic and orders are normally pulled and shipped quickly in 7 different warehouses across the US and then dropped in sealed USPS, UPS and FedEx containers for pick-up on the next business day. High volume or backordered items may have additional shipping delays. Once pulled, orders cannot be stopped, however you can return orders for refund unopened if you have changed your mind. Tracking normally is sent / updated within 48 hours of pick-up. Delivery is normally 3-10 business days after leaving the warehouse, however carrier delays may occur. Shipping may take longer in rural areas, due to carrier delay, weather or acts of God. Weekends and Holidays do not count as business days and have no pickup, movement or delivery.

Covid 19 Update — We have seen slowdowns and backlogs in package pickup, sorting, scanning and delivery by UPS, Fedex and USPS caused by worker shortages and facilities disruption due to the Covid 19 Pandemic. Some UPS and USPS hubs are no longer scanning all packages, as a result some tracking will show nothing until delivery.

MSI B550-A PRO Desktop Motherboard


MSRP: $139.99
Sale: $138.51
Your Savings: $1.48

$138.51

In Stock
FREE GROUND SHIPPING *


MSI B550-A PRO Desktop Motherboard MFG: MSI
UPC: 824142219362

  • AMD Chipset
  • Socket AM4
  • ATX
  • 128 GB DDR4 SDRAM Maximum RAM
  • DIMM, UDIMM
  • 4 x Memory Slots
  • Gigabit Ethernet
  • HDMI
  • DisplayPort
  • 6 x SATA Interfaces


* ground shipping normally takes 3-10 business days, depending on destination

Overview

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.

Tech Specs

Manufacturer MSI
Manufacturer Part Number B550APRO
Manufacturer Website Address http://www.msi.com
Brand Name MSI
Product Series PRO
Product Model B550-A PRO
Product Name B550-A PRO Desktop Motherboard
Product Type Desktop Motherboard
Processor & Chipset:
Chipset ManufacturerAMD
Total Processor Supported1
Processor SocketSocket AM4
Processor SupportedRyzen 3
Ryzen 5
Ryzen 7
Ryzen 9
Memory:
Number of Memory Slots4
Memory Form FactorDIMM
UDIMM
Maximum Memory Supported128 GB
Memory TechnologyDDR4 SDRAM
Memory Speed Supported1866 MHz
2133 MHz
2400 MHz
2667 MHz
2800 MHz
2933 MHz
3000 MHz
3066 MHz
3200 MHz
3466 MHz
3600 MHz
3733 MHz
3866 MHz
4000 MHz
4133 MHz
4266 MHz
4400 MHz
I/O Controller:
Controller TypeSerial ATA/600
RAID SupportedYes
RAID Levels0
10
1
Video:
Onboard VideoCPU Dependent Video
Audio:
Audio Channels7.1
Network & Communication:
Gigabit EthernetYes
I/O Expansions:
Number of Total Expansion Slots4
Total Number of PCI Express Slots4
Number of PCI Express x1 Slots2
Number of PCI Express x16 Slots2
Interfaces/Ports:
Total Number of USB Ports8
Number of USB 2.0 Ports4
Number of USB 3.2 Ports4
HDMIYes
DisplayPortYes
Number of Network (RJ-45) Ports1
Onboard Interfaces:
Number of SATA Interfaces6
Number of M.2 Interfaces2
Total Number of Onboard USB Ports7
Number of Onboard USB 2.0 Ports4
Number of Onboard USB 3.2 Ports3
Physical Characteristics:
Form FactorATX
Width12"
Depth9.6"
Miscellaneous:
Country of OriginChina
Warranty:
Limited Warranty3 Year

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