MSI AM5 B850M GAMING PLUS WIFI M-ATX

AM5, AMD B850, mATX
Delivered between Fri, 25.7. and Wed, 6.8.
9 pieces in stock at supplier
free shipping

Product details

MSI MAG B850M Mortar WiFi is designed for gamers with a stable, durable, and DIY-friendly foundation for their PC builds. Featuring a true Wi-Fi 7 solution, 5G LAN, USB 20Gbps, PCIe 5.0 solutions, supplemental PCIe power, and exclusive EZ DIY features, it's ready for the battlefield of AMD Ryzen™ 9000 series processors.

MSI's mainstream MAG series epitomizes stability and durability and is built to withstand the most intense gaming sessions. The entire lineup features robust construction with metallic-like hardness and excellent heat dissipation, ensuring stability for all critical gaming components.

12+2+1 Duet Rail Power System
Unleash and sustain maximum performance with a flagship VRM design built with a total of 12+2+1 digital power phases. Combining dual power connectors and 60A Smart Power Stage, MAG B850M Mortar WiFi is ready for the challenge of high-end processors.

Extended Heatsink
The extended heatsink enlarges the surface of heat dissipation and maintains performance under heavy loads.

Double-sided M.2 Shield Frozr
The strengthened M.2 thermal solution helps keep M.2 SSDs safe and ensures incredible performance.

Heavy Plated VRM Heatsink
The VRM heatsink covers the upper MOS and helps dissipate heat.

7W/mK Thermal Pad & Additional Choke Pad
High-quality 7W/mK MOSFET thermal pads and additional choke thermal pads ensure stable performance when all cores are running at high speed.

Enlarged Chipset Heatsink
The enlarged heatsink is designed to reduce dust and noise and is capable of maintaining high efficiency of heat dissipation.

High-bandwidth and Low-latency Network
MSI's premium network solution provides incredible data transfer speed for demanding users.

Key specifications

Processor family
AMD 7000 Series
Memory type
DDR5 RAM
Number of memory modules (RAM)
4 x
Internal connection options
M.2 (3x)S-ATA (4x)
Wireless transmission
BluetoothWi-Fi
Mainboard features
Front panel audio connectorRGB header
Item number
59673320

General information

Manufacturer
MSI
Category
Motherboards
Manufacturer no.
B850M GAMING PLUS WIFI
Release date
24.6.2025

Motherboard properties

Form factor
Micro ATX (mATX)
Socket
AM5
Chipset
AMD B850
Mainboard features
Front panel audio connectorRGB header
Operating system compatibility
Windows
BIOS type
UEFI AMI
Wireless transmission
BluetoothWi-Fi
Wi-Fi standard
Wi-Fi 7 / 802.11be

Processor

Processor family
AMD 7000 Series

Memory

Memory form factor
DIMM
Number of pins
288 x
Number of memory modules (RAM)
4 x
Max. memory (RAM)
256 GB
Memory chip
DDR5 SDRAM
Max. RAM OC
8200 MHz
Supported memory speed
4800 MHz6400 MHz8200 MHz
Memory type
DDR5 RAM
RAM buffer
Unbuffered

Graphics properties

Video connections
HDMI OUT (1x)
Video connection version
HDMI 2.1

Network

Network connections
RJ45 (1x)
Ethernet controller brand
Realtek
Max. port speed
5 Gbit/s

Audio

Chip
Realtek ALC897
Audio channel
7.1 Channel

Data storage

RAID configuration
0110

Internal interfaces

Internal connection options
M.2 (3x)S-ATA (4x)
Expansion slot
PCI Express x16 (Gen 3) (1x)PCI Express x16 (Gen 4) (1x)
PCI express version (max.)
5
Number of fan connector
2

Further connections

USB ports
USB-AUSB-C
Exact USB ports
USB-A 2.0 (4x)USB-A 3.2 Gen 1 (4x)USB-A 3.2 Gen 2 (3x)USB-C 3.2 Gen 2 (2x)

Power supply

Power connectors
24-pin ATX

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
Memory type: DIMM. Supported storage drive interfaces: M.2

Product dimensions

Length
243.80 mm
Width
243.80 mm
Height
243.84 mm

30-day right of return
24 Months Warranty (Bring-in)

Compare products

Goes with

Reviews & Ratings

Warranty score

How often does a product of this brand in the «Motherboards» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Gigabyte
    2.6 %
  • 1.MSI
    2.6 %
  • 3.AsRock
    2.8 %
  • 3.ASUS
    2.8 %
  • 5.Supermicro
    3.1 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Biostar
    0 days
  • 2.AsRock
    1 day
  • 3.MSI
    2 days
  • 3.Supermicro
    2 days
  • 5.NZXT
    6 days

Return rate

How often is a product of this brand in the «Motherboards» category returned?

Source: Digitec Galaxus
  • 1.MSI
    4.8 %
  • 2.ASUS
    5 %
  • 3.Gigabyte
    5.1 %
  • 4.NZXT
    6.4 %
  • 4.Supermicro
    6.4 %
Source: Digitec Galaxus