MSI PRO B850M-A WIFI, AM5, 4x DDR5 256GB, 1x HDMI, 1x PCI-E x16 slot, 3x M.2,4x USB2.0, 3x USB C, Wi-Fi 7 | PRO B850M-A WIFI

MSI MAG B850M-A WIFI, AM5, 4x DDR5 256GB, 1x HDMI, 1x PCI-E x16 slot, 3x M.2,4x USB2.0, 3x USB C, Wi-Fi 7

SPECIFICATIONS

Model Name
PRO B850M-A WIFI

CPU
Support Supports AMD RyzenTM 9000 / 8000 / 7000 series DesktopProcessors

CPU Socket
AMD Socket AM5

Chipset
AMD B850 Chipset

Expansion slot
1 x PCIe 5.0 x16 slot,
1 x PCIe 4.0 x4 slot,
1 x PCIe 3.0 x1 slot

Display Interface
Support 4K@60Hz as specified in HDMI™ 2.1,
DisplayPort 1.4 – Requires Processor Graphics

Memory Support
4 DIMMs, Dual Channel DDR5 – 8200+ MT/s (OC)

Storage
1 x M.2 Gen5 x4 128Gbps slot,
1 x M.2 Gen4 x4 64Gbps slot,
4 x SATA 6Gbps ports

USB ports
6 x USB 10Gbps (3 Type-A + 3 Type-C),
5 x USB 5Gbps (5 Type-A)
4 x USB 2.0

LAN Realtek®
8126 5G LAN

WIFI / BT
Wi-Fi 7 Solution, Bluetooth 5.4

Audio
8-Channel (7.1) HD Audio with Audio Boost

FEATURES
Wi-Fi 7
Wi-Fi 7 is the latest wireless solution that takes a huge leap
forward with multiple improvements to meet the traffic demand
brought and the growing number of wireless devices.

5G Network Solution
Featuring premium 5G LAN to deliver better network experience.

EZ M.2 Shield Frozr II
The new tool-less design makes installing or removing your M.2
SSD and Shield Frozr much easier

EZ PCIe Clip II
Allows for easy removal of the graphics card by pressing the taillike lock with one finger, even in the cramped case spaces.

Latest DDR5 Memory
A huge step of DDR performance enhancement with the latest
DDR5 memory and MSI Memory Boost technology.

Lightning Gen 5
The latest PCIe 5.0 solution with up to 128GB/s bandwidth for
maximum transfer speed.

Extended Heatsink Design
MSI extended PWM heatsink and enhanced circuit design ensures
even high-end processors to run in full speed.

Pre-installed I/O Shielding
Better EMI protection and more convenience for installation

Frozr AI Cooling
Detect CPU GPU temperatures and automatically adjust system
fan duty to a proper value.

Product Last Updated: 10/04/2026

* Whilst we endevour to have the correct information on our products provided from the supplier/manufacturer errors do occur. If you would like to double check the information, please feel free to contact us and we will be more than happy to confirm information on the item prior to purchase. In the event that product information is incorrect due to information we received from our supplier or manufacturer, we do not take responsibility or be held liable for damage(s) or loss(s). We will work with you and do our best to make the best of a bad situation and work with our supplier(s) and/or manufacturer(s) to supply the correct information for the item purchased etc..