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MSI B840M GAMING WIFI6E
MSI · Motherboard

MSI B840M GAMING WIFI6E

B840 · AM5 · mATX · DDR5

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  • Chipset B840
  • Form factor mATX
  • Memory slots 2
  • Max memory 128 GB
  • Socket AM5
  • Memory type DDR5

MSI B840M GAMING WIFI6E is a mATX and B840 chipset motherboard for AM5 processors and DDR5 memory. It came out in 2025.

Released
2025-12-12
Socket
AM5

Specifications

Key specs

Chipset
B840
Form factor
mATX
Memory slots
2
Max memory
128 GB
Socket
AM5
Memory type
DDR5
Released
2025-12-12
Part number
B840M GAMING WIFI6E

Processor

Processor manufacturer
AMD
Processor socket
Socket AM5
Compatible processor series
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor sockets
Socket AM5

Memory

Supported memory types
DDR5-SDRAM
Number of memory slots
2
Memory slots type
DIMM
Memory channels
Dual-channel
ECC сompatibility
Non-ECC
Supported memory clock speeds
4800,5600,8000 MHz
Supported memory clock speed (max)
8000 MHz
Maximum internal memory
128 GB
Unbuffered memory
Yes
View all specifications +9 more sectionsShow fewer specifications

Storage controllers

Supported storage drive types
HDD & SSD
Supported storage drive interfaces
Micro SATA III
Number of HDDs supported
4
Number of storage drives supported
6
RAID support
Yes
RAID levels
0, 1, 10

Internal I/O

USB 2.0 connectors
4
USB 3.2 Gen 1 (3.1 Gen 1) connectors
3
Number of SATA III connectors
4
Total number of SATA connectors
4
Number of CPU fan connectors
1
Number of chassis fan connectors
5
Number of water pump connectors
1
RGB LED pin header
Yes
Number of RGB LED pin headers
3

Rear panel I/O ports

USB 2.0 ports quantity
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
4
Ethernet LAN (RJ-45) ports
1
HDMI ports quantity
1
HDMI version
2.1

Network

Ethernet LAN
Yes
Ethernet interface type
2.5 Gigabit Ethernet
LAN controller
Realtek RTL8125D
Wi-Fi
Yes
Top Wi-Fi standard
Wi-Fi 6E (802.11ax)
Wi-Fi standards
802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax)
Bluetooth
Yes
Bluetooth version
5.3

Features

Motherboard chipset
AMD B840
Audio chip
Realtek ALC897
Audio output channels
7.1 channels
Product colour
White
Component for
PC
Motherboard form factor
micro ATX
Motherboard chipset family
AMD
Windows operating systems supported
Windows 11 x64

Expansion slots

PCI Express x16 slots
2
Number of M.2 (M) slots
2
1st M.2 largest key size
2280
1st M.2 highest PCI Express generation
4.0
2nd M.2 largest key size
2280
2nd M.2 highest PCI Express generation
4.0

BIOS

BIOS type
UEFI AMI
BIOS memory size
256 Mbit
ACPI version
6.5
System Management BIOS (SMBIOS) version
3.7

Weight & dimensions

Width
226 mm
Depth
243.8 mm

Technical details

Legal guarantee
3 year(s)

Check the manufacturer's page before buying.

Ready to buy? Get the MSI B840M GAMING WIFI6E at today's price.Buy now on Amazon

Compatible processors

AM5 socket

Compatible memory

DDR5

About this product

The B840M GAMING WIFI6E is crafted to offer extensive connectivity, versatile tools, and Wi-Fi solution for gamers seeking a comprehensive experience. Featuring Wi-Fi 6E, 2.5G LAN, PCIe 4.0 solution and exclusive EZ DIY features, it is ready for 24/7 non-stop gaming optimized for AMD Ryzen™ 9000 series processors. MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before.

DIRECT 7+2+1 POWER DESIGN

Unleash and sustain excellent performance with an enhanced VRM design built with digital CPU power system, 8-pin power connector and exclusive Core Boost technology, the B840M GAMING WIFI6E is ready to sustain heavy gaming loadings. Extended Heatsink Extended Heatsink enlarges the surface of heat dissipation and maintain the performance at heavy loads. M.2 Shield Frozr Strengthened M.2 thermal solution helps keep M.2 SSD safe and ensures incredible performance.

Datasheet (PDF)

B840M GAMING WIFI6E vs similar motherboards

MSI B840M GAMING WIFI6EMSI PRO B840M-BASUS PRIME B840M-RASUS PRIME B840M-K
ChipsetB840B840B840B840
Form factormATXmATXmATXmATX
Memory slots2222
Max memory128 GB128 GB128 GB128 GB
SocketAM5AM5AM5AM5
Memory typeDDR5DDR5DDR5DDR5
Released2025202520262026

Questions about the B840M GAMING WIFI6E

What are the main specs of the MSI B840M GAMING WIFI6E?

B840, AM5, mATX, DDR5, 2 RAM slots.

Which chipset does the MSI B840M GAMING WIFI6E use?

B840.

What form factor is the MSI B840M GAMING WIFI6E?

mATX.

Which socket does the MSI B840M GAMING WIFI6E use?

AM5.

When did the MSI B840M GAMING WIFI6E come out?

It was released in 2025/12 (MSI).

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