MSI MAG B550 Tomahawk Gaming Motherboard (AMD Ryzen 5000 Series, AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, 2.5Gbps LAN, ATX)
Condition: New
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Availability:
Only 5 left in stock, order soon!
Arrives
Friday, Jan 9
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Features
- Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update.Audio ports (Rear): 5plus Optical S/PDIF (Realtek ALC1200 / ALC1220P Codec)
- Supports dual channel DDR4 memory up to 128 GB (4866 MHz)
- On-board dual LAN: 2.5G LAN plus Gigabit LAN
- Mystic Light: RGB LED lighting and extendable pin headers 16.8 million colors / 29 effects
- Audio Boost rewards your ears with studio grade sound quality for immersive gaming experiences
- Premium Thermal Solution: Aluminum Cover with additional choke thermal pad rated for 7W/mk and PCB with 2 ounce thickened copper
- Lightning Fast Game Experience: PCIe 4.0, Lightning Gen 4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 GEN 2
Description
Powered by AMD Ryzen AM4 processors, the MSI MAG B550 TOMAHAWK is hardened with performance essential specifications to outlast enemies. Equipped with Extended Heatsink Design, Core boost, M.2 Shield Frozr and 2.5G LAN for sustained performance. A variety of USB connectivity options including the latest USB 3.2 Gen 2x2 Type C standard allow for a range of peripheral and device compatibility.
Brand: msi
CPU Socket: Socket AM4
Compatible Devices: Personal Computer
RAM Memory Technology: DDR4
Compatible Processors: AM4
Chipset Type: AMD B550
Memory Clock Speed: 5100 MHz
Platform: Windows 11
Model Name: MAG B550 TOMAHAWK
CPU Model: AMD A4
Processor: amd_a4
RAM: 128 GB DDR4
Memory Speed: 5100 MHz
Wireless Type: 2.4 GHz Radio Frequency, 5 GHz Radio Frequency
Number of USB 2.0 Ports: 6
National Stock Number: 0
Brand: msi
Series: MAG B550 TOMAHAWK
Item model number: MAG B550 TOMAHAWK
Item Weight: 2.99 pounds
Product Dimensions: 12 x 9.6 x 1.5 inches
Item Dimensions LxWxH: 12 x 9.6 x 1.5 inches
Computer Memory Type: DDR4 SDRAM
Batteries: 1 Lithium Ion batteries required.
Manufacturer: MSI
Language: English
Is Discontinued By Manufacturer: No
Date First Available: June 16, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jan 9
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I bought this as a replacement for an ASRock X570 Steel Legend that I've had since they first launched back in the summer of 2019. As, it was gradually showing more signs of failure over the time that I had it in my system. First, the onboard audio stopped working. Which, I just switched over to using the audio interface that I had for recording. So, that didn't bother me TOO much. I also was noticing that games were starting to have more and more issues with micro-stutter. I did some tinkering and got it behaving a little better. But, that never fully went away. The final thing that prompted me to look for a replacement was I started having really bad lag issues while playing online games. Yes, legitimate lag. Not the "I missed my shot, the stupid server must be lagging!" type of lag. As, I'm very well aware of and openly recognize how bad I am at competitive games. This is "friend and I are in a car together, friend awkwardly crashes car into a building, I wonder why they did that, then the game suddenly snaps to us being on a completely different street and still moving" level of lag. Quite a frequent occurrence, at that. I tried a list troubleshooting steps. Driver updates for everything, lowering the games' settings, reinstalling the games, cleaning the operating system, reinstalling the operating system, adjusting settings and also resetting the router back to factory defaults, port forwarding, pestering the cable company about connection issues, different ethernet cables, etc. I figured seeing as the motherboard was already having other issues, perhaps it was drying out even further. So, I decided to start looking for replacement options. Which, being that the 7000 series processors had been out for a while, I knew that my options would be slimmer than before. At least for a NEW board. Also, pricing may not be ideal. But, reading a bunch of reviews and doing comparisons, this particular board sounded like it would be a solid choice without having to spend a lot more for the available higher end boards. I had mixed feelings about "stepping down" a notch to the B550 chipset. But, upon further consideration and reading, the performance difference was minimal. Plus, I didn't use enough of the extra features that X570 had over B550 to really be concerned about that. So, I went ahead and grabbed it. Yeah, it was a great decision to grab this board! Though there are still occasional lag quirks (which, is to be expected, honestly), there was a HUGE improvement in connection stability with games. Plus, games and the system overall feel notably smoother than before. Far less micro-stutter and things just feel more responsive, as a whole. Oh, and I have onboard sound back. Which, is cool too! But, yeah, I am VERY happy with this board! Everything about it seems to work great! And, I can't think of any major complaints. Maybe that the UEFI menu feels a little messy to navigate. But, that could just be a familiarity thing. Also, I don't use any of the "software suite" stuff that often comes with motherboards. That's just unnecessary bloat, to me. So, I can't comment on any of that stuff. I was worried that I was getting a step down from my previous board. But, that was not at all the case. A very solid choice for anyone that plays demanding games, does content creation, and/or software/game development.
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Reviewed in the United States on December 3, 2024 by Amazon Customer
Swapped out a dying MSI MEG ACE motherboard, and everything booted up perfectly. Updated the bios, enabled XMP support w/1.35v on my 32GB kit, moved over my two NVME drives and booted right up. Nice and fast! I picked this board for it's 2.5Gb lan, which I'm using.
Reviewed in the United States on December 10, 2025 by DouglasB
I purchased the MSI MAG B550 TOMAHAWK motherboard for my new PC build and am absolutely delighted with its performance and features. From the moment I installed it, I knew I had made the right choice. Performance and Reliability: This motherboard is a true powerhouse, ideal for both gaming and demanding tasks. The robust VRMs ensure stable power delivery, even with overclocking, resulting in excellent CPU performance. Additionally, PCIe 4.0 support delivers impressive data transfer speeds, future-proofing my system
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Reviewed in the United States on September 17, 2025 by Edward Rodríguez Edward Rodríguez
Beautiful MB looks great and well packaged although a board with all the capabilities that it hass i feel like it should have blutooth but it doesn’t but i guess thats my fault for not reading carefully but other then that great board definitely recommend all you got it do is get your self a blutooth dangle and you good
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Reviewed in the United States on December 8, 2025 by Luis
Picked this board up as a replacement for a Gigabyte AB350 Gaming 3 which died on me and It's been a smooth transition which is refreshing since this is my first MSI board, I've only used Asus, Asrock & Gigabyte in the past. My 5600X worked immediately without requiring a BIOS update though I highly recommend downloading and flashing the latest BIOS update from MSI's website as soon as you complete your setup to ensure stability. It's a very simple process and for those who are new to bios flashing, just look up a video on youtube. Overall, this is a solid motherboard and I'm satisfied with my purchase. If you like the features it offers and don't mind spending a little extra, opt-in to getting the upgraded version with WiFi. Though your mileage may vary as we all have different specs, here are the pros and cons of this mobo based on my personal experience with it: Pros: Nice features for the price point (2.5G LAN, PCIe 4.0 support, .etc) Sleek design with heatsinks that will compliment the look of any system, Two M.2 slots with protective plating, that don't disable any SATA ports like my previous board, Plenty of SATA ports & fan headers, Easy-to-use BIOS compared to other brand setups Cons: Only 6 back-end USB ports (Not a big deal, but more would be nice without the need of a hub) The on-board LED is in a weird spot. While the light is visible in my third pic as a close-up, bigger GPUs may block it almost entirely. This can be switched off manually on the board itself though. Also, to customize the LED options you have to use the MSI Center program's Mystic Light feature. I would've preferred built-in RGB settings through the bios. Did not play nice with my Corsair Vengeance LPX 32GB RAM, caused BSODs multiple times with XMP both on and off, and despite working flawlessly on my old board. Currently works fine with an old 16GB 3200mhz kit though.
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Reviewed in the United States on September 27, 2024 by XiØN XiØN
I’m using MSI MAG B550 TOMAHAWK with my Ryzen 7 5800XT, and it’s been absolutely flawless. It booted up right away with no issues, the BIOS is clean and easy to navigate, and all components like RAM, SSDs, GPU, and AIO cooler worked perfectly from day one. The VRM temperatures stay cool even under load, and the board handles overclocking without any instability. I’m running 32GB DDR4 3200 MHz memory, dual NVMe drives, and a Radeon RX 5700 XT. Everything runs smooth and stable. It has plenty of USB ports, strong build quality, and a great layout for cable management. The RGB lighting is subtle but adds a nice touch to the setup. Overall, one of the best-value B550 motherboards you can buy. It performs like a high-end X570 while staying affordable and reliable.
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Reviewed in the United States on October 28, 2025 by Jackjones Jackjones