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MSI MAG B850 Tomahawk MAX WiFi Motherboard, ATX - Supports AMD Ryzen 9000/8000 / 7000 Processors, AM5-80A SPS VRM, DDR5 Memory Boost 8400+ MT/s (OC), PCIe 5.0 x16, M.2 Gen5, Wi-Fi 7, 5G LAN

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Availability: In Stock.
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Arrives Friday, Jul 31
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Style: MAG B850 TOMAHAWK MAX WIFI


Features

  • ULTRA POWER - SUPPORTS THE LATEST RYZEN 9000 PROCESSORS IN HIGH PERFORMANCE - The MAG B850 TOMAHAWK MAX WIFI employs a 14 Duet Rail Power System (80A, SPS) VRM for the AMD B850 chipset (AM5, Ryzen 9000 / 8000 / 7000) with Core Boost architecture
  • FROZR GUARD - Premium cooling features such as 7W/mK MOSFET thermal pads, extra choke thermal pads and an Extended Heatsink; Includes chipset heatsink, EZ M.2 Shield Frozr II, and a Combo-fan (for pump & system) header (3A)
  • DDR5 MEMORY, PCIe 5.0 x16 SLOT - 4 x DDR5 DIMM SMT slots enable extreme memory overclocking speeds (1DPC 1R, 8400+ MT/s); 1 x PCIe 5.0 x16 SMT slot (128GB/s) with Steel Armor II supports cutting-edge graphics cards
  • QUADRUPLE M.2 CONNECTORS - Storage options include 2 x M.2 Gen5 x4 128Gbps slots, 1 x M.2 Gen4 x4 64Gbps slot and 1 x M.2 Gen4 x2 32Gbps slot; Features EZ M.2 Shield Frozr II to prevent thermal throttling and EZ M.2 Clip II for EZ DIY experience
  • CONNECTIVITY - Network hardware includes a full-speed Wi-Fi 7 module with Bluetooth 5.4 & 5Gbps LAN; Rear ports include USB 20G Type-C and 7.1 USB High Performance Audio with Audio Boost 5 (supports S/PDIF output)

Description

MAG B850 TOMAHAWK MAX WIFI: Unite as One Designed for gaming on the AMD B850 chipset (Ryzen 9000 / 8000 / 7000 supported, AM5), the MSI MAG B850 TOMAHAWK MAX WIFI motherboard includes premium GPU support with PCIe 5.0 x16, improved DDR5 8400+ MT/s (OC) memory support, and M.2 Gen5 storage options. To power the latest Ryzen 9000 processors, the MAG B850 TOMAHAWK MAX WIFI is equipped with a 14 Duet Rail Power System (80A, SPS) VRM for the CPU and dual 8-pin CPU power connectors, augmented with multiple passive cooling features. MSI B850 gaming motherboards feature durable server-grade PCBs with 2oz of thickened copper and PCIe Steel Armor II to support the primary graphics card slot. Connectivity includes full-speed Wi-Fi 7 and Bluetooth 5.4 technology, Realtek 5G LAN, USB 20G Type-C, and 7.1 USB High Performance Audio. For gamers looking for an AMD Ryzen 9000 / 8000 / 7000 platform that unites PCIe 5.0 x16 graphics card architecture, improved DDR5 support, and M.2 Gen5 storage options into one elegant design, the MSI MAG B850 TOMAHAWK MAX WIFI gaming motherboard is the perfect choice.

Brand: msi


CPU Socket: Socket AM5


Compatible Devices: Personal Computer


RAM Memory Technology: DDR5


Compatible Processors: Supports AMD Ryzen 9000/7000 Series Desktop Processor


Chipset Type: B850


Memory Clock Speed: 8400.0


Platform: Windows 11


CPU Model: Ryzen 7


Memory Storage Capacity: 256 GB


Processor Socket: Socket AM5


Compatible Devices: Personal Computer


RAM Memory Technology: DDR5


Compatible Processors: Supports AMD Ryzen 9000/7000 Series Desktop Processor


Chipset Type: B850


Memory Clock Speed: 8400.0


Platform: Windows 11


CPU Model: Ryzen 7


Memory Storage Capacity: 256 GB


Graphics Card Interface: PCI Express


Memory Slots Available: 4


Number of Ports: 8


Total Usb Ports: 2


Chipset Family: AMD B850


Brand: msi


Model Number: MAG B850 Tomahawk MAX WiFi


Manufacturer: MSI


UPC: 824142395356


Mfr Part Number: B850TMAHAWKWIFIMAX


Warranty Description: 3 Year Manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great B850, don’t bother on the B650!
Review Image by Jacob Henry
Review Image by Jacob Henry
This motherboard by MSI in my opinion is a fantastic budget board making it a better purchase than the B650 which has been discontinued. The build quality in the motherboard is solid, nothing feels flimsy, the heatsinks are solid metal, the IO Shield is solid, it fit in my case great! The motherboard is compatible from boot with most AM5 sockets, especially the 7800/9800X3D, I had no issues on the first boot. A wonderful feature msi has implemented on this board is the button near the solid heatsink that unlatches the GPU when pushed. This makes maintenance and upgrading on this motherboard stupid easy. Everything is simple and not overcomplicated. The looks are iffy, the tomahawk design could have been there, but the green just ruins it for me, I wish MSI went with a different color because the green they use is what really makes my build off putting. The USB ports on this motherboard are fantastic, I can plug all devices I need into the rear with fast transfer speeds from each. Overall, this motherboard is fantastic, if this is on sale this is a DEFINITE purchase for me! ... show more
Reviewed in the United States on October 20, 2025 by Jacob Henry
    • Great motherboard
MSI MAG B850 Tomahawk MAX WiFi – fixed a problem that ruined my entire PC experience I replaced my previous motherboard after months of unexplained performance issues, and this board immediately proved the motherboard can be the root cause of everything. On first boot, my GPU finally negotiated full PCIe x16 at Gen 4 speeds (confirmed in CPU-Z), something my old board never did correctly. Drives were detected instantly, Windows booted without a reinstall, and system stability was night-and-day better right away. This board has rock-solid power delivery, excellent thermals, and a clean, easy-to-navigate BIOS. No weird lane behavior, no throttling, no instability — it just works exactly how a high-end AM5 motherboard should. Games that previously felt “off” suddenly run perfectly smooth, and performance now matches the hardware I paid for. It honestly feels like I unlocked performance that was being held back since day one. Build quality is excellent, layout is smart, Wi-Fi has been solid, and it feels like a motherboard designed for people who actually care about stability and longevity. Bottom line: This board restored my confidence in my entire PC. If you’re dealing with strange performance issues or want a rock-solid foundation for an AM5 build, the B850 Tomahawk MAX WiFi is absolutely worth it. ... show more
Reviewed in the United States on January 26, 2026 by jennifer greenough
    • Quality I can Trust
Just a little backstory, I used my previous motherboard MSI Z97-G45 with a i7-4790k cpu for about 11 years. It served me well but that CPU near its end of lifecycle (Win 10 support no more Oct 2025) and gaming performance not adequate for my needs. Fast Forward to 2025, I got the Ryzen 9800x3d, 32GB DDR5 RAM CL30, this motherboard, and Corsair Nautilus 240 RS liquid cooler. I'm reusing my RTX 3070 GPU, c70 pc case, corsair 650w PSU, couple of HDDs, and 1 SATA 2.5 SSD to cut down cost. What attracted me to this board was the cpu worked right out of the box. No bios flashing was required. One less headache to deal with and the quicker I can set up my computer. Gaming performance is fantastic, it knocks my socks off. I'm able to get 100-300 fps on 1440p with DLSS on my ASUS XG27ACDNG 1440 Oled monitor depending on the game. One thing I really liked about this board was the EZ button for the GPU slot. No longer I had to get my hands in an awkward tight position to remove my GPU. All you have to do now is press that button and it comes out. Simplicity at its best! Just a fair warning that there is no paper booklet / manual inside the box. I had to look it up online on my phone to read the manual. It's not a big deal, it's probably standard to go paperless this day and age. Also this motherboard is only for Windows 11. Since I reused my old C70 vengeance case, I didn't have front USB 3.0 or USB Type-C headers to use these ports. Doesn't bother me since USB 2.0 suits me just fine. Buy a new pc case if you want to use these functions. It also comes with a Wifi 7 antenna since I'm an oldie using a wifi5 router, it wouldn't enhance my speed. There are also RGB leds on the board if you want to make your pc look nice. So far my pc runs like a dream. Pc boots up in around 1-2 mins with a sata ssd. There are m.2 slots and it looks relatively easy to install nvme drives. One wierd thing I noticed when I have 2 monitors plugged in with display ports connectivity, during boot process, it will go to my 2nd monitor, then go back to my 1st monitor. Just nitpicking, not a big deal. I'm still completely satisfied with this motherboard even though I'm an oldie whom doesn't use all the newest features. Thanks MSI! ... show more
Reviewed in the United States on March 24, 2025 by John Cheung
    • Good, relatable AM5 Motherboard
Really nice Motherboard for the price. (At least, in my opinion it is.) It has four SSD slots, two for Gen 5, two for Gen 4. The top two are faster, so I would use those. Supports my RX 9070 perfectly, and AM5 is a really good platform. Supports four RAM slots, which is nice, but you may not even be able to use them, given the price. Would highly recommend. WiFi 7 is also a thing I guess, but I don’t really notice much of a difference, as I live with rural WiFi, but for other people it may be better Idk. ... show more
Reviewed in the United States on May 25, 2026 by RandomPerson214
    • Arch Linux runs smoothly.
Well made, easy to setup, and the web site offers full manuals for download. Supported my Ryzen 9900 12 core cpu out of the box with no firmware update hassles. When I did update the firmware it was straight forward. The B850 chipset is power hungry and there are two 8-pin connectors for the CPU power and a separate 8-pin connector for the PCE-E power. Not all B850 mobos offer that configuration. I am running with an MSI MAG A850GL PCIE5 power supply. The M.2 slot is populated with a PCIe 5.0x4 NVMe and it is very fast. Linux support for the B850 chipset is a work in progress but Arch Linux runs smoothly for me. ... show more
Reviewed in the United States on March 30, 2026 by joatmor
    • NO WINDOWS 10 COMPATIBILITY
This is a nightmare. You guys need to show better that the motherboard DOES NOT WORK WITH WINDOWS 10 AT ALL. I had to update to W11 after swapping my SSD back over to my old board. Now I have a red CPU light and yellow DRAM light. I’ve spent hours trying to just upgrade my computer, and it all started with this board and it’s apparent lack of support for an operating system that is still in use. ... show more
Reviewed in the United States on May 10, 2026 by Matthew Wiesner
    • Perfect balance of performance and price
Review Image by Diego Alejandro Rodríguez Gutiérrez
I recently purchased the MSI MAG B850 TOMAHAWK MAX WIFI for my new AM5 build, and I couldn't be happier with the choice. Pros: Ease of Installation: This was the main highlight for me. The board layout is very clean, and the new EZ DIY features made installing the M.2 drives and the GPU a breeze without needing tiny screws. Value for Money: Compared to the X870 options, this B850 board offers everything a gamer needs without breaking the bank. You get premium build quality and great connectivity at a fair price point. Performance: It handles my processor perfectly, and the EXPO profiles for the RAM worked instantly. The WiFi signal is also strong and stable. Overall, if you are looking for a solid, reliable, and easy-to-build motherboard, the Tomahawk B850 is a fantastic choice. Highly recommended! ... show more
Reviewed in the United States on November 29, 2025 by Diego Alejandro Rodríguez Gutiérrez
    • Great Motherboard for upgrading to Windows 11
The motherboard arrived in great condition, and once I had my PC set up, it's been working just fine as a motherboard. Keep in mind that this board does have limitations on what storage drives they can support, so if you plan on carrying over your OS drive from your old build, be sure to check for compatibility. Also, be prepared to transfer over to Windows 11, as the drivers for everything will not support Windows 10. With Windows 11, however, everything works perfectly, and the bios is very intuitive to work through. I also like that there's multiple M.2 slots for expanding storage in the future. Highly recommend if you can get it on sale. ... show more
Reviewed in the United States on June 17, 2025 by Kevin Finney

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