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MSI

MSI Pro B850M-A WIFI Gaming Desktop Motherboard - AMD B850 Chipset - Socket AM5 - Micro ATX

$199.99
None availableas of 06/09/2026

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

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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.

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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

PRO B850M-A WIFI offers a simple design with a harmonious silver color scheme that perfectly matches both white and black PC builds. It is engineered with many exclusive features of MSI, a Wi-Fi 7 with EZ Antenna, 5G LAN, PCIe 5.0 M.2 with EZ M.2 Shield Frozr II, and Supplemental PCIe Power, ready for the AMD Ryzen™ 9000 series processors.

Technical specifications

General Information

Manufacturer MSI
Manufacturer Part Number PROB850MAWIFI
Manufacturer Website Address http://www.msi.com
Brand Name MSI
Product Series PRO
Product Model B850M-A WIFI
Product Name PRO B850M-A WIFI Gaming Desktop Motherboard
Product Type Gaming Desktop Motherboard

Processor & Chipset

Chipset Manufacturer AMD
Chipset Model B850
Total Processor Supported 1
Processor Socket Socket AM5
Processor Supported Ryzen 9Ryzen 7

Technical Information

AI-powered Yes

Memory

Number of Memory Slots 4
Memory Form Factor UDIMMDIMMCUDIMM
Maximum Memory 256 GB
Memory Technology DDR5 SDRAM
Memory Speed Supported 8200 MHz4800 MHz6400 MHz6000 MHz5600 MHz

I/O Controller

Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 0101

Video

Onboard Video CPU Dependent Video

Audio

Audio Channels 7.1

Network & Communication

Bluetooth Yes
Bluetooth Standard Bluetooth 5.4
Gigabit Ethernet Yes
2.5Gigabit Ethernet Yes
Wireless LAN Yes
Wireless LAN Standard IEEE 802.11 a/b/g/n/ac/ax/be

I/O Expansions

Total Number of Expansion Slots 3
PCI Express Standard PCI Express 4.0PCI Express 3.0PCI Express 5.0
Total Number of PCI Express Slots 3
Number of PCI Express x1 Slots 1
Number of PCI Express x4 Slots 1
Number of PCI Express x16 Slots 1

Interfaces/Ports

Total Number of USB Ports 8
HDMI Yes
DisplayPort Yes
HDMI Version
  • 2.1
Number of Network (RJ-45) Ports 1

Onboard Interfaces

Number of SATA Interfaces 4
Number of M.2 Interfaces 2
Total Number of Onboard USB Ports 7
Number of Onboard USB 2.0 Ports 4

Physical Characteristics

Color Family Silver
Product Color Silver
Form Factor Micro ATX
Width 9.6"
Depth 9.6"

Miscellaneous

Package Contents
  • PRO B850M-A WIFI Gaming Desktop Motherboard
  • European Union Regulatory Notice
  • Quick Installation Guide
  • EZ M.2 Clip II Remover
  • 2 x EZ M.2 Clip II
  • EZ Wi-Fi Antenna
  • SATA Cable
Brand Compatibility AMD

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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.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

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.