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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)

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Condition: Used - Like New
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Availability: Only 1 left in stock, order soon!
Fulfilled by UltraParts Renewed
Arrives May 10 – May 16
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Size: (Pack of 1)


Style: MSI MAG B550 TOMAHAWK Gaming Motherboard


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 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


CPU Model: AMD A4


Memory Storage Capacity: 128 GB


Ram Memory Maximum Size: 128 GB


Main Power Connector Type: 24-Pin


Graphics Card Interface: PCI Express


Memory Slots Available: 4


Number of Ports: 13


S/PDIF Connector Type: Optical


System Bus Standard Supported: SATA 3


Total SATA Ports: 6


USB 2.0: 6


Total Usb Ports: 9


Number of Ethernet Ports: 2


Total Number of HDMI Ports: 1


Total PCIe Ports: 4


Brand: msi


Model Name: MAG B550 TOMAHAWK


Model Number: MAG B550 TOMAHAWK


Manufacturer: MSI


UPC: 824142217627


Global Trade Identification Number: 25


Mfr Part Number: MAG B550 TOMAHAWK


Unit Count: 1.0 Count


Item Weight: 2.99 Pounds


Warranty Description: 3 Years


Item Dimensions L x W x H: 9.6"L x 1.5"W x 12"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 10 – May 16

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

    • Best AM4 board for the money
Size: (Pack of 1) Style: MSI MAG B550 TOMAHAWK Gaming Motherboard
Best motherboard I've ever had. Works very well, no issues and booted first try. At a time when PC hardware is expensive and hard to find, the AM4 set up is the best option for gaming and this motherboard will definitely buy some time until the next upgrade. Its VRMs will handle the best of the AM4 CPUs and have more than enough cooling to handle overclocking due to having over kill heatsinks. Great optical audio out for it being built in. Decent USB ports though it could use a couple more. Operating with a liquid cooled Ryzen 7 5800x, MSI RTX 3070, 32GB DDR4 3200 RAM, Samsung NVMe 980 M.2 SSD. CPU overclocked hitting 4.82Ghz, GPU overclocked, RAM overclocked to 3600. In a case with proper fan placement it never runs hot and runs most everything at high to ultra settings at 120+ FPS. I intentionally have my FPS capped at 120 (118) for cooling purposes and to not stress my gpu so that it lives longer but it hit 244 FPS when uncapped (on a 244Hz monitor). ... show more
Reviewed in the United States on March 14, 2026 by Amazon Customer
    • Rock-solid motherboard for Ryzen. Fast, stable, and easy to work with
Size: (Pack of 1) Style: MSI MAG B550 TOMAHAWK Gaming Motherboard
Review Image by Jackjones
Review Image by Jackjones
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. ... show more
Reviewed in the United States on October 28, 2025 by Jackjones
    • Wonderful replacement for my quirky previous board.
Size: (Pack of 1) Style: MSI MAG B550 TOMAHAWK Gaming Motherboard
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. ... show more
Reviewed in the United States on December 3, 2024 by Amazon Customer
    • Excellent VRMs for High-End CPUs, but Questionable 'New' Condition
Size: (Pack of 1) Style: MSI MAG B550 TOMAHAWK Gaming Motherboard
The Good: I purchased this board specifically to handle my Ryzen 9 5900X, as I needed a motherboard with a robust power delivery solution. The B550 Tomahawk has absolutely delivered. My main goal was to lower my MOSFET temperatures, and the results are fantastic. Temps went from a concerning 80°C on my old board to a very stable 50°C with this one. It handles the 5900X without breaking a sweat. Beyond that, the layout is great and it has a sufficient number of fan and RGB headers for a clean build. The Not-So-Good: The reason for docking a star has nothing to do with the board's performance, but with the condition it arrived in. I paid for a new product. However, the sealed box was missing the user manual, the MSI case badge, the driver DVD, and all the other small cards that should be included. For a collector who likes to keep everything, this is a major disappointment. It strongly suggests that I was sent a previously returned item that was simply repackaged. Conclusion: The motherboard itself is 5-star worthy for its performance. However, be cautious about the seller/fulfillment, as receiving an incomplete package sold as "new" is not acceptable. Updated on July 17th: I suddenly found that the box content listed on msi website has latest update. It turns out that only sata cable and quick installation guide are provided. All others are no longer provided. ... show more
Reviewed in the United States on July 12, 2025 by alex

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