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MSI ARSENAL GAMING B450 TOMAHAWK AM4 AMD B450 SATA 6Gb/s USB 3.1 HDMI ATX AMD Motherboard

Ships from United States. Most customers receive within 2-10 days.

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  • AMD B450
  • Supports AMD Ryzen 1st and 2nd Generation / Ryzen with Radeon Vega Graphics / Athlon with Radeon Vega Graphics Processors for Socket AM4
  • Supports DDR4 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 (by A-XMP OC MODE), 2667/ 2400/ 2133/ 1866 MHz (by JEDEC)

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

MSI B450 TOMAHAWK

Based on AMD B450 chipset, this board supports up to 2nd generation AMD Ryzen processors of up to eight cores. It's built with thermals and speed in mind, allowing you to take full advantage of your high-end components and the latest technology, like high-frequency RAMs, NVMe SSDs and USB 3.1 Gen2 devices. It's also built using premium materials, ensuring unbeatable quality and reliability even in the most torturous environments. Moreover, with onboard LED lighting and the RGB LED header, you have the ability to create and customize mesmerizing lighting effects, which make you rig look as good as it performs.

  • Supports AMD Ryzen 1st and 2nd Generation/ Ryzen with Radeon Vega Graphics/ Athlon with Radeon Vega Graphics Processors for Socket AM4
  • Supports DDR4 Memory, up to 3466(OC) MHz
  • Extended Heatsink Design: MSI extended PWM and enhanced circuit design ensures even high-end processors to run in full speed.
  • Lightning Fast Game experience: 1x TURBO M.2, AMD Turbo USB 3.1 GEN2, Store MI technology
  • Core Boost: With premium layout and fully digital power design to support more cores and provide better performance.
  • DDR4 Boost: Advanced technology to deliver pure data signals for the best gaming performance and stability.
  • MULTI-GPU: With STEEL ARMOR PCI-E slots. Supports 2-Way AMD Crossfire
  • Audio Boost: Reward your ears with studio grade sound quality for the most immersive audio experience.
  • Mystic Light and Mystic Light Sync: 16.8 million colors / 10 effects in one click. Synchronize RGB strips and other RGB solutions for customization.
  • BIOS FLASHBACK+: Simply use a USB key to flash any BIOS within seconds, without installing a CPU, memory or graphics card.
  • In-Game Weapons: Game Boost, GAMING Hotkey, X-Boost
  • EZ Debug LED: Easiest way to troubleshoot
  • Click BIOS 5: Award-winning BIOS with high resolution scalable font, favorites and search function
  • GAMING CERTIFIED: 24-hour on- and offline game and motherboard testing by eSports players
READY TO DOMINATE THE GAME
1 BIOS FLASHBACK+
2 PS/2 Combo Port
3 DVID Port
4 USB 3.1 Gen2 (Type A+C)
5 HD Audio Connectors S/PDIF
6 Heavy plated gaming heatsinks
Military styles designed for maximum cooling
7 DDR4 Boost
Optimized traces and isolated memory circuitry
8 PCI-E Steel Armor
Protecting VGA cards against bending and EMI
9 Turbo M.2
Delivering speeds up to 32Gb/s using Gen3 x4
10 Audio Boost
Optimized gaming audio using best components
11 Extended Heatsinks Design
Leading heatsink design, extended for maximum cooling and performance
12 Arsenal Sticker Area
Free for customization with personal style
B450 GAMING PRO CARBON AC
B450 GAMING PRO CARBON AC
THERMAL SOLUTION FOR MORE CORES AND HIGHER PERFORMANCE
With more cores' processors, thermal and power design is more important to make sure the temperature keeps lower. MSI extended PWM and enhanced circuit design ensures even high-end CPU to run in full speed with MSI motherboards.
EASY BIOS RECOVERY WITH BIOS FLASHBACK+
Run into trouble when updating your BIOS? Simply flash the old BIOS version back and continue gaming within minutes with BIOS Flashback+. BIOS Flashback+ even works without a CPU, memory or graphics card installed!
B450 GAMING PRO CARBON AC
EXTREME STORAGE PERFORMANCE: TURBO M.2
Enjoy a blazing fast system boot up and insanely quick loading of applications and data. Delivering speeds up to 32Gb/s per device using Gen3 x4, Turbo M.2 is over 5 times faster than a regular SATA III connection!
B450 GAMING PRO CARBON AC
Maximize your USB Device performance
Transfer your favorite games, music and movies over USB faster than ever. MSI offers a wide variety of options to connect and boost your USB 3.1 devices, delivering lightning-fast transfer speeds!
B450 GAMING PRO CARBON AC
B450 GAMING PRO CARBON AC
Core Boost

Core Boost technology combines MSI's premium layout and optimized power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, also creating the perfect conditions for your CPU.

Customize your Gaming Rig
Personalize your PC with 16.8 million colors and 10 effects through Mystic Light RGB LED. Controlled in one click with the Mystic Light APP or a mobile device.
B450 GAMING PRO CARBON AC
Amplify your Game with Audio Boost 4
Like a dedicated sound card Audio Boost 4, powered by Nahimic, offers a HD audio processor, dedicated amplifier and high quality audio capacitors, all physically isolated from the rest of the motherboard circuitry to ensure the purest audio signal to locate enemies with pin-point accuracy.
B450 GAMING PRO CARBON AC
Unmatched Memory Performance
MSI motherboards are crammed with features to fuel your gaming rig's memory with more speed, higher overclockability and increased stability.
B450 GAMING PRO CARBON AC
Best compatibility
Optimized traces and a fully isolated memory circuitry ensures perfect stability and performance, so you never have to worry about your system crashing during games.
B450 GAMING PRO CARBON AC
B450 GAMING PRO CARBON AC
Your in-game advantage
Outsmart and outperform your opponents in-game using an array of unique MSI GAMING tools. Clever hardware & software tools, created to keep you one step ahead of the competition and boost your skills.
B450 GAMING PRO CARBON AC
Immerse yourself into Virtual Worlds
Integrating the very best of cutting edge technologies on MSI hardware provides a smooth Mixed Reality, Augmented Reality and Virtual Reality ride. Through joint efforts with major VR brands, combined with unique MSI features to optimize VR, MSI brings gamers and professionals a vivid and realistic experience in which content truly comes alive.
B450 GAMING PRO CARBON AC

Learn more about the MSI B450 TOMAHAWK

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
Ownership: 1 day to 1 week
4/ 5
Works great ! For now

Pros: Recieved it today and it works great with my thermaltake commander case

Cons: None so far

Overall Review: I wanted to test it so i plugged in my corsair RMx 850w and it worked fine ! Waiting for amd’s new cpu to come to start building the pc

Did you find this review helpful?
Manufacturer Response:
Dear Rashed,

Thank you for sharing your experience with the B450 TOMAHAWK! If you ever require technical assistance, please feel free to contact our technical support department directly at 888.447.6564 from M to F, 5am to 4am Pacific Standard Time.

Thanks for choosing MSI!

Best Regards,
MSI Review Team
Ownership: 1 month to 1 year
Verified Owner
1/ 5
Really disappointed by this product and expected more from the motherboard

Pros: NONE

Cons: When i first got the motherboard it seemed fine and in great condition. But after putting my system together and trying to play some games it keep crashing on me, but after 5 reboots of the computer it stopped crashing. But once i got in the game i heard no game audio but i fixed that problem after about 3 hours of videos and pain of restarting the system. Once i got in a game it seemed fine so i thought i could not hear anyone and my mic didn't work. Just to make sure it wasn't my mic i plugged it in to my laptop and worked fine. And there was no solution to fixing this no videos and tech support from a friend. I would like a refund and my money back because i'm super disappointed from this product

Overall Review: Don't buy spend your money on another motherboard!!!

0 out of 6 people found this review helpful. Did you?
Manufacturer Response:
Dear Amber,

Thank you for sharing your experience with the MSI product. We are sorry to hear you are experiencing a problem with the sound for your PC. There is a chance you have a problem with your Windows installation, not the motherboard. If you have any further questions regarding this product or have any suggestions for improvement for us, please do not hesitate to contact us directly at usrma@msi.com and we will be more than happy to assist you. If you would like further technical assistance, please feel free to contact our technical support department directly at 626.271.1004 from M to F, 9am to 6pm Pacific Standard Time.

Thanks for choosing MSI!

Best Regards,
MSI Review Team | JM07032019005 | usreview@msi.com
Ownership: 1 week to 1 month
Verified Owner
5/ 5
First time and it was excellent

Pros: Avid PC builder, this is the first go at this mobo. Installation was a breeze. Lots of connections for everything. RGB lights are a simple and clean touch. The heatsinks on the motherboard do their job. Great BIOS software. Easy for a first time pc builder or expert. People stress losing certain HD ports due to the m.2 slot..... yet the average person does not need 6 hard drives... just sayin.

Cons: No 5v rgb. So make sure if you are planning to hook any rgb components to this motherboard they are all 12v.

1 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Valued Customer,

Thank you for your review of the B450 TOMAHAWK! We hope you continue to enjoy it! If you ever require technical assistance, please feel free to contact our technical support department directly at 626.271.1004 from M to F, 9am to 6pm Pacific Standard Time.

Thanks for choosing MSI!

Best Regards,
MSI Review Team
Ownership: 1 day to 1 week
Verified Owner
2/ 5
No M.2 screw

Pros: Wouldn't know, I can't start my PC because I have no usable storage.

Cons: User guide says M.2 screw is supplied, but this is false. I went through all the extra screws that could possibly fit it, because all of them are the same color. None did.

0 out of 4 people found this review helpful. Did you?
Manufacturer Response:
Dear Aaron,

Thank you for sharing your experience with the B450 TOMAHAWK. We are sorry to hear you did not receive an M.2 screw in the packaging for the motherboard. Please accept our sincerest apologies for any inconvenience. If you have any further questions regarding this product or have any suggestions for improvement for us, please do not hesitate to contact us directly at usrma@msi.com and we will be more than happy to assist you. If you would like, you can call our support department directly at 626.271.1004 from M to F, 9am to 6pm Pacific Standard Time to check for availability of the missing part.

Thanks for choosing MSI!

Best Regards,
MSI Review Team | JM06262019007 | usreview@msi.com
Ownership: 1 month to 1 year
Verified Owner
5/ 5
great product

Pros: everything i needed.able to give cpu slight overclock if needed.software and utilities work great

Cons: none so far

Overall Review: this motherboard was perfect for what i wanted/needed for a new pc build-if your going for anything more than mild oc' go with the 470 board.i'm only using a r7 2700.i would definitely purchase again or recommend it for certain builds.the r7 2700 paired with this board is perfect for what i needed it for and also gaming with friends online using discord

Did you find this review helpful?
Manufacturer Response:
Dear John,

Thank you for sharing your experience with the B450 TOMAHAWK! If you ever require technical assistance, please feel free to contact our technical support department directly at 626.271.1004 from M to F, 9am to 6pm Pacific Standard Time.

Thanks for choosing MSI!

Best Regards,
MSI Review Team
Ownership: 1 month to 1 year
5/ 5
Great Product

Pros: - Easy Install
- Nice Side Element Lighting
- Useful M.2
- Easy BIOS

Cons: - None that come to mind

Overall Review: - You should probably check your case specs, I almost had some clearance issues with VRM's and my Case Fans.
- Great Product overall

Did you find this review helpful?
Manufacturer Response:
Dear Valued Customer,

Thank you for sharing your experience with the B450 TOMAHAWK! If you ever require technical assistance, please feel free to contact our technical support department directly at 626.271.1004 from M to F, 9am to 6pm Pacific Standard Time.

Thanks for choosing MSI!

Best Regards,
MSI Review Team
5/ 5
Perfect for my needs

Pros: It had everything I needed, including places for 6 fans (including the cpu cooler) and the newly built pc posted on the first attempt. Installation was easy and the board looks good in the white/black build.

Cons: The RBG lighting on the board doesn't have the best colors, so whites look quite blue.

Did you find this review helpful?
Manufacturer Response:
Dear Ben,

Thank you for sharing your experience of the B450 TOMAHAWK! If you ever require technical assistance, please feel free to contact our technical support department directly at 626.271.1004 from M to F, 9am to 6pm Pacific Standard Time.

Thanks for choosing MSI!

Best Regards,
MSI Review Team
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Wonderful board, no problems

Pros: I had heard that the onboard LED's are stock red, but they are RGB and you can change them with the included MysticLight software. All RGB's on the board carry the same settings (ie. CPU cooler and board have same color and pattern). There are 2 RGB jacks on the board. Doesn't seem to matter which you use.
I appreciate the documentation it came with, really helped setting it up.
Bios is nice and modern.
So far, zero problems

Cons: None that I've found.
There are only 4 system fan ports. If you are planning on using more, you will need an external solution.

Overall Review: I would recommend this product.

0 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Valued Customer,

Thank you for sharing your experience with the B450 Tomahawk! If you ever require technical assistance, please feel free to contact our technical support department directly at 626.271.1004 from M to F, 9am to 6pm Pacific Standard Time.

Thanks for choosing MSI!

Best Regards,
MSI Review Team
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