Solid board, perfect for my 9800X3D - This motherboard has been rock solid. Building with it was easy, the BIOS is simple to use, and my DDR5-6000 EXPO profile worked right away. WiFi 7 is fast and stable, and it pairs great with my Ryzen 7 9800X3D. Plenty of USB ports and M.2 slots. Zero issues since day one.
20% off MSI – MAG B850 TOMAHAWK MAX WIFI (Socket AM5) AMD B850 ATX DDR5 Wi-Fi 7 Motherboard – Black
SKU: 6616918
$18399
Was $229.99 Save $46.00
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Overview
- Processor compatibility
Supports AMD Ryzen 9000/7000 Series Desktop Processor Socket AM5 - Speed (memory speed supported)
4 DIMMs, Dual Channel DDR5-8400+ MT/s (OC) - Lightning Gen 5
The latest PCIe 5.0 solution with up to 128GB/s bandwidth for maximum transfer speed. - Wi-Fi 7
The latest wireless solution with a new 320MHz channel, achieving a maximum transmission speed of 5.8Gbps, which is 2.4 times faster than Wi-Fi 6/6E. - Audio Boost 5
Isolated audio with a high quality audio processor for the most immersive gaming experience
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Specifications
Capacity & configuration
- Memory Type Supported
- DDR5
- Memory Slot Type
- 288-pin DIMM
Dimensions & weight
- Product Name
- MAG B850 TOMAHAWK MAX WIFI (Socket AM5) AMD B850 ATX DDR5 Wi-Fi 7 Motherboard
- Product Length
- 304.10 millimeters
- Product Width
- 243.86 millimeters
- Product Weight
- 50 ounces
Features
- Brand
- MSI
- Color
- Black
- Chipset
- AMD B850
- Chipset Compatibility
- AMD
- Form Factor
- ATX
- Processor Socket
- Socket AM5 (LGA 1718)
- Processor Compatibility
- AMD Ryzen 9 9000 Series
- Number of M.2 Slots
- 4
- Number Of PCI-E x16 Slots
- 3
- SATA Connector
- 4x SATA 6G
- Wireless Connectivity
- Bluetooth
- Wireless Networking Standard
- Wi-Fi 7
- Wireless Standard
- BE
- USB Ports
- 8 x USB-A 2.0
- Number of Audio Channels
- 7.1
- Number Of Memory Slots
- 3
- Maximum Memory Supported
- 256 gigabytes
- Memory Format Supported
- UDIMM
- Memory Speeds Supported
- 4x DDR5, Maximum Memory Capacity 256GB
- RAID Support
- RAID 0
- Year of Release
- 2025
- UPC
- 824142395356
Power & warranty
- Model Number
- MAG B850 TOMAHAWK MAX WIFI
Warranty & protection
See manufacturer documentation.
Register your product with the manufacturer within 30 days of delivery.
Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.
Customer reviews
Write a reviewMSI mag b850 - Works really well I have had my pc for over a year and have had no problems at all
It’s alright but sensitive to ram issues - So the board is fine. I’d like to give props to the staff at the christiansburg Best Buy. They helped me above and beyond their duty to find the right board, even applied a new discount to the new replacement board.
Didn't last very long - I purchased this motherboard in April 2026. While I was running Stable Diffusion to create some images. My computer just died. After testing switching out different parts I narrowed it down to the motherboard. I upgraded to ASUS ProArt and that is working much better.
Good Sold Product - For price can’t beat it’s performance and has plenty of plugs for extra fans/lights
Solid motherboard - Would recommend if youre thinking about upgrading for AM5
Recommend - Has plenty of extra ports for ssd wifi card is exceptionable
fantastic MSI motherboard - Great motherboard 2 m.2 ssd connected directly to the CPU and two other more to the motherboard chip set and in the back IO more than enough connectivity, such as USB type C and type A
No Problems Whatsoever... No surprises either... - I have noticed nothing out of the ordinary that I can't fix myself that I would know of at least... About the only thing I noticed recently was occasional freezing of the os level and then recover about a minute or possibly less than that later but an Upgrade in Place Install of Windows 11 25H2 Pro OS fixed that just so happens...!!
MSI motherboard - For the prices of one off the best motherboard for amd 5
excellent motherboard - Everything works perfectly, it has excellent heat dissipation, I recommend this product 100%.
Working great, but has odd inconveniences. - It functions, fits my ram, cpu cooler and gpu, all the good stuff. It just has really odd choices. Things like the manual only describing how to put together a general desktop, not what the actual unique naming for the power slots actually are, or even providing an equivalent to the standard ports on other motherboards. It also took me a while to realize that the sata ports for an ssd drive are all covered by screwed on metal plates, which I would have safely assumed were delicate components that needed a guard. In actuality it's just there to obscure where the ssd slot is before you debate whether it's meant to allow you to screw back on the plate or not for protection and also it's a guessing game which of the 3 slots are the right size for your particular ssd. I'd say it works and is worth it, but I'm sure other motherboards can do the same at a similar price point without having these odd issues.
Great motherboard - Works great and the software is very easy to work with.
Bat budget mid tier Motherboard - This motherboard looks awesome, has plenty of pcie slots, and a gpu release button. Also has a usbc header which my last three boards didn’t. Solid am5 mobo. Definitely recommend
Nice product - Bios comes preloaded which is nice, but I had to update mine as it was behind. For the price this is a great mid tier Motherboard
Good Mobo - Bought this in a pinch when troubleshooting. No issues with it since. 10/10
High-quality motherboard with excellent features - I chose the MSI MAG B850 Tomahawk MAX WiFi for my new AM5 gaming build, and it has been an excellent purchase. The installation process was simple, and the layout of the board made cable management and installing components very easy. The BIOS is well organized and easy to use. Setting up my DDR5 memory with the EXPO profile only took a few minutes, and the system has been completely stable ever since. I also appreciate the built-in Wi-Fi 7, plenty of USB ports, and multiple M.2 slots, which give me room for future upgrades. The overall build quality is impressive. The heatsinks feel solid, temperatures have remained low even during long gaming sessions, and everything worked right out of the box without any issues. The only thing to keep in mind is that this motherboard offers a lot of features, so first-time builders may want to spend a little time getting familiar with the BIOS settings. Other than that, I have no complaints. Overall, this is a fantastic motherboard with excellent performance, strong build quality, and plenty of connectivity. I would definitely recommend it to anyone building a new AMD Ryzen gaming PC.
Bottomless ports - This motherboard is insane! When I tell you, it has a lot of m.2 and usb ports, its got a lot of ports!
Slow Boot times & Constant freezing for a CPU that is supposedly one of the better fast ones, 9800x3d. This motherboard is nothing but freezing any time I start a game, it freezes 5 times almost like hiccups. Planning on buying another brand and throwing this one in the trash so no one else has to experience my issue.
Value for money - Love that this board has PCIe gen5 for GFX! also really good support for M2 as well.
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