MAG B850 TOMAHAWK MAX WIFI is designed for gamers with a stable, durable and DIY friendly foundation for their PC builds. Coming up with 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.
Less steps, control easily
14+2+1 Duet Rail Power System 80A SPS
Extended Heatsink Design
Flawless Wi-Fi 7 & 5G LAN
USB20G Type-C connection
One-click overclocking
Optimized UI / UX design
AWARDS
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.
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EXCLUSIVE FEATURES
Pre-Installed I/O Shield
EZ M.2 Shield Frozr II
PCIe Supplemental Power
14+2+1 Duet Rail Power System with 80A SPS
EZ Conn Design
EZ PCIe Release
Steel Armor II
Premium thermal solution
Extended Heatsink
8-Layer Server Grade PCB
with 2oz Thickened Copper
Pump Fan Support
Heatsink with 7W/mK Thermal Pad
HIGH-SPEED TRANSMISSION
USB 10G
5G LAN
Wi-Fi 7
2x PCIe 5.0 M.2 Slots
Memory Boost
Lightning Gen 5
2x PCIe 4.0 M.2 Slots
Ready for AI PC
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.
AI Engine
provides several categories for you to sync the applications you want to perform and automatically optimizing them to create a comfortable environment.
AI LAN MANAGER
optimizes networking performance and minimizes latency, providing a seamless online experience.
Frozr AI Cooling
automatically adjusts fan duty to make sure the system stays in cool, stable and high performance.
AI Boost
is an MSI exclusive feature. It overclocks NPU to improve higher AI performance.
EZ DIY
- ONE-FINGER
- ONE HAND
- ONE STEP
- ONE GLANCE
- EZ M.2 INSTALLATION
- EZ GPU INSTALLAION
- EZ BUTTON
MSI’s exclusive EZ M.2 Shield Frozr II and EZ M.2 CLIP II make M.2 installation seamless. Insert the SSD card into the slot and press it down to lock it in place with the clip. As fasten the SSD, flick the clip outwards and then the SSD is removed. The process is smooth, and you don’t need to use your tools like before. One finger can give you perfect DIY experience.
Introducing MSI’s EZ M.2 CLIP II Remover, a handy tool designed to simply switching or repositioning the EZ M.2 CLIP II on your motherboard. This tool allows users to effortlessly detach the EZ M.2 CLIP II from the motherboard and reattach it to any desired M.2 slot. It is included in the accessory kit that comes with MSI motherboards.
EZ PCIe Release
An easy-to-access physical button release mechanism that can help remove any PCIe card with a single tap, making it much easier to upgrade to a new GPU or other compatible device, streamlining the entire process and enhancing user experience.
MORE FOR DIY FRIENDLY
CPU and memory not required. Leam more
- EZ Mounting
EZ MOUNTING
MSI motherboards circuitry ensure the case standoff keep out zones are pure and clean. Moreover, the protective paint is printed around each screw hole to prevent parts from being scratched or damaged to the motherboard.
Avoid Collision Notification
Keep Out Zone
Double ESD Protection
- EZ Antenna
- EZ Conn-Design
- EZ Front Panel Cable
- DRIVER UTILITY INSTALLER
MSI EZ Antenna makes the process effortless by simply attaching fasteners to the motherboard without rotation.

EZ Conn header (JAF_2)
MSI's EZ Conn header(JAF_2) allows users to easily connect MSI EZ series fans (7 pin) or MSI liquid cooling (11 pin). If you don't have the above products, we also provide a 1 to 3 EZ Conn-Cable, enabling you to connect ARGB light, system fan and USB device.
ARGB + SYS FAN + USB
MSI LIQUID COOLING
MSI EZ SERIES FAN
This cable takes care of the tedious part of the build process, makes motherboard front panel connections quickly and accurately.
MSI DRIVER UTILITY INSTALLER
Once connected to the internet, MSI Driver Utility Installer will detect and present suitable drivers and utilities automatically, you can download and install with just a few clicks. Learn more
*Please ensure to connect the internet, or the Driver Utility Installer won’t launch automatically.
*MSI Driver Utility Installer will be ready in Windows 11 build 22H2.
- EZ DEBUG
EZ DEBUG LED
Onboard LEDs will indicate the source of the problem so you know exactly where to look to get up and running again.
EZ MEMORY DETECTION LED
This LED lights up when it detects faulty memory in slots, eliminating guesswork from troubleshooting.
ULTRA PERFORMANCE
- Power Solution
- memory
- PROTECTION
- MORE FOR PERFORMANCE
MORE FOR PERFORMANCE
- TVS
- SOLID PIN DESIGN
- STAINLESS STEEL IO
- OCP Protection
- GROUNDING STRUCTURE
Transient Voltage Suppressors (TVS)
Transient Voltage Suppressors (TVS) are safety devices used to protect against excessive voltage. All motherboard models of MSI are equipped with TVS. When the voltage abnormally rises, the TVS switches from a high-resistance state to a low-resistance state, diverting the excessive voltage to ground. This helps prevent circuit damage caused by high voltage.
solid pin design
The 4-pin, 8-pin, and 24-pin power connectors of MSI motherboards are all designed with solid pins. The solid pin design allows for a more stable transmission of 12V power to the CPU, even when handling high current loads.
Advantages of Solid Pin Power connector
- Improved stability : Larger contact area enhances stability during power delivery.
- Low impedance : Solid pins offer low impedance, enabling efficient power flow.
- Strong durability : The solid pin design ensures strong durability, capable of withstanding demanding conditions.
- Suitable for high-current applications.
Anti-corrosive Stainless Steel IO Shield
An extra layer of sponge materials along with corrosive resistance IO Shield to help improve static electricity and reduce electromagnetic radiation noise from the system as well as much more durable compare to traditional IO Shields.
* The image above is an illustrative reference. Please refer to specification pages for more details.
Over Current Protection
MSI motherboards prioritize safety with the embedded Overcurrent Protection (OCP), ensuring crucial components such as the USB ports, DDR memory, PWM IC, and CPU are shielded from excessive current. This proactive defense mechanism curtails the risk of damage or malfunction due to power surges, promoting long-term system stability. This commitment to safeguarding your hardware underscores MSI's dedication to producing motherboards that prioritize durability and stability.
The Grounding Structure of Power Phases
The grounding structure of power phases is the MSI's exclusive design. This patented design enables to suppress the electromagnetic interference (EMI) generated by the power phases and helps to efficiently conduct heat to the copper plane with grounding properties.
FROZR DESIGN
TRILINK
- networking
- storage
- Expansion
- WIFI 7 Solution
- AI Lan Manager
THE NEXT GEN WI-FI SOLUTION – 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.
*Windows 11 compatibility only
Wi-Fi 7 (802.11be) introduced higher speeds, wider channels, improved efficiency, and reduced latency over Wi-Fi 6 (802.11ax). It also improved battery life and provided better performance in crowded environments.
The Wi-Fi 7 provides maximum speeds to a whopping 5.8 Gbps! 2.4 times faster than previous Wi-Fi 6/6E standards, Wi-Fi 7 is set to be the wireless standard of the future.
Previous Wi-Fi generations have had to make do with 160MHz channel widths. Wi-Fi 7 brings this width up to 320MHz (on 6GHz) – ensuring better reliability during simultaneous transmissions at max speeds.
The higher QAM(Quadrature Amplitude Modulation) value, the more data each packet can carry. Wi-Fi 7 improves the modulation scheme from 1024-QAM to 4096-QAM – boosting peak transmission rates and network capacity.
Wi-Fi 7 enables devices to simultaneously send and receive data across several frequency bands and channels to meet the traffic demand brought and the growing number of wireless devices.
AI LAN Manager
MSI AI LAN Manager automatically classifies and prioritizes the latency-sensitive applications for online games, giving you the best online gaming experience with low latency.
MSI AI LAN MANAGER
- Automatically prioritizes games above other applications
- Allows to change applications' traffic priority
- Allows to customize bandwidth for each application
- Analysis Wi-Fi signals to select the best source.
Experience
- audio
- Audio Boost 5
- ISOLATED ANALOGY STRUCTURE
audio boost 5
- HIGH PERFORMANCE ALC4080 AUDIO PROCESSOR
- HIGH QUALITY AUDIO CAPACITORS
- HIGH QUALITY AUDIO JACKS WITH S/PDIF
- DEDICATED HEADPHONE AMPLIFIER
- ISOLATED AUDIO SIGNAL
- DE-POP PROTECTION
The Isolated Analogy Structure for Audio Connectors
To provide clear voice, MSI develops a unique structure – Isolated Analogy Structure. The external metal framework of the audio connectors is separated from the internal layout, which ensures the sound quality crisp.
* The image above is an illustrative reference. Please refer to specification pages for more details.
MAG B850 TOMAHAWK WIFI
- Supports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors
- Supports DDR5 Memory, Dual Channel DDR5 8400+ MT/s (OC)
- Ultra Performance: 14+2+1 Duet Rail Power System, dual 8-pin CPU power connectors, Core Boost, Memory Boost, 8-layer PCB made by 2oz thickened copper and server-grade level material
- Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads and EZ M.2 Shield Frozr II are built for high performance system and non-stop experience
- EZ DIY: EZ M.2 Shield Frozr II, EZ M.2 Clip II, EZ PCIe Release and EZ Antenna
- Lightning Fast Game experience: PCIe 5.0 slot, Lightning Gen 5 x4 M.2, Front USB Type-C
- 5G LAN with Wi-Fi 7 Solution: the latest solution for professional and multimedia use, delivering secure, stable, and high-speed networking and data transmission
- Audio Boost 5: Reward your ears with studio-grade sound quality for the most immersive gaming experience