MSI MAG B850 TOMAHAWK MAX WIFI II

B850 · AM5 · ATX · DDR5

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Chipset B850
Form factor ATX
Memory slots 4
Max memory 256 GB
Socket AM5
Memory type DDR5

MSI MAG B850 TOMAHAWK MAX WIFI II is an ATX and B850 chipset motherboard for AM5 processors and DDR5 memory. It came out in 2026.

Released: 2026-02-19
Socket: AM5

Specifications

Key specs

Chipset: B850
Form factor: ATX
Memory slots: 4
Max memory: 256 GB
Socket: AM5
Memory type: DDR5
Released: 2026-02-19
Part number: MAG B850 TOMAHAWK MAX WIFI II
EAN / UPC: 4711377424011

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: 4
Memory slots type: DIMM
Memory channels: Dual-channel
ECC сompatibility: Non-ECC
Supported memory clock speeds: 4800,5600,8400 MHz
Supported memory clock speed (max): 8400 MHz
Maximum internal memory: 256 GB

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Storage controllers

Supported storage drive types: HDD & SSD
Supported storage drive interfaces: M.2, Micro SATA III
Number of HDDs supported: 4
Number of storage drives supported: 8
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: 4
USB 3.2 Gen 2 (3.1 Gen 2) connectors: 1
Number of SATA III connectors: 4
Total number of SATA connectors: 4
CPU fan connector: Yes
Number of CPU fan connectors: 6
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: 4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: 2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity: 3
Ethernet LAN (RJ-45) ports: 1
HDMI ports quantity: 1
HDMI version: 2.1

Network

Ethernet LAN: Yes
Ethernet interface type: 5 Gigabit Ethernet
Wi-Fi: Yes
Top Wi-Fi standard: Wi-Fi 7 (802.11be)
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), Wi-Fi 7 (802.11be)
Bluetooth: Yes
Bluetooth version: 5.4

Features

Motherboard chipset: AMD B850
Audio chip: Realtek ALC4080
Audio output channels: 7.1 channels
Product colour: Black
Component for: PC
Motherboard form factor: ATX
Motherboard chipset family: AMD
Windows operating systems supported: Windows 11 x64

Expansion slots

PCI Express x16 (Gen 3.x) slots: 1
PCI Express x16 (Gen 4.x) slots: 1
PCI Express x16 (Gen 5.x) slots: 1
Number of M.2 (M) slots: 4
1st M.2 largest key size: 22110
1st M.2 highest PCI Express generation: 5.0
2nd M.2 largest key size: 2280
2nd M.2 highest PCI Express generation: 5.0
3rd M.2 largest key size: 2280
3rd M.2 highest PCI Express generation: 4.0
4th M.2 largest key size: 2280
4th 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: 243.8 mm
Depth: 304.8 mm

Technical details

Legal guarantee: 3 year(s)

Check the manufacturer's page before buying.

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Compatible processors

AM5 socket

AMD Ryzen 7 9800X3D8 cores · 16 threads
AMD Ryzen 5 76006 cores · 12 threads
AMD Ryzen 7 7800X3D8 cores · 16 threads
AMD Ryzen 5 9600X6 cores · 12 threads
AMD Ryzen 5 7500F6 cores · 12 threads
AMD Ryzen 5 8600G6 cores · 12 threads
AMD Ryzen 9 9950X16 cores · 32 threads
AMD Ryzen 7 77008 cores · 16 threads

Compatible memory

DDR5

Kingston FURY Beast 32GB (2x16) DDR5-6000 CL3632 GB (2x16) · DDR5
ADATA XPG Lancer RGB 32GB (2x16) DDR5-6000 CL3032 GB (2x16) · DDR5
Klevv Cras V RGB32 GB (2x16) · DDR5
Klevv 32GB (2X16GB) 6400MHz CL32 DDR5 GAMING RAM MODULE 32-38-38-78 1.35V URBANE V RGB BLACK KIT32 GB (2x16) · DDR5
Klevv Bolt V32 GB (2x16) · DDR5
Klevv Fit V16 GB (1x16) · DDR5
Kingston 64GB 5200MT/s DDR5 CL36 DIMM (Kit of 2) FURY Beast Black EXPO64 GB (2x32) · DDR5
VeloxStor 7011-DDR, 16 GB, DDR5, 4800 MT/s, 288-pin UDIMM16 GB (1x16) · DDR5

About this product

MSI MAG B850 TOMAHAWK MAX WIFI II

MAG B850 TOMAHAWK MAX WIFI II is designed for gamers with a stable, durable and DIY friendly foundation for their PC builds. Coming up with the latest 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. Carefully developed by MSI, allows SSD installation and removal without the need for screws, greatly enhancing convenience. The Pre-Installed I/O Shield offers a streamlined and hassle-free installation experience by eliminating the need to manually fit the I/O shield during motherboard setup. With its built-in design, it ensures proper alignment and a secure fit, providing both protection and convenience while enhancing the overall durability of your build.

User manual (PDF) · Datasheet (PDF)

MAG B850 TOMAHAWK MAX WIFI II vs similar motherboards

	MSI MAG B850 TOMAHAWK MAX WIFI II	MSI PRO B850-V EVO WIFI	MSI PRO B850-S EVO WIFI	MSI MAG B850 GAMING PLUS MAX WIFI
Chipset	B850	B850	B850	B850
Form factor	ATX	ATX	ATX	ATX
Memory slots	4	4	4	4
Max memory	256 GB	256 GB	256 GB	256 GB
Socket	AM5	AM5	AM5	AM5
Memory type	DDR5	DDR5	DDR5	DDR5
Released	2026	2026	2026	2026