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  • NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included.
  • COVERAGE: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one.
  • EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon.com Gift Card for the purchase price of your covered product or replace it.
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  • COVERAGE: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one.
  • EASY CLAIMS PROCESS: File a claim anytime online at www.Asurion.com/Amazon or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon.com Gift Card for the purchase price of your covered product or replace it.
  • EXPERT TECH HELP: Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
  • MORE DETAILS: Additional information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase (if you do not see this email, please check your spam folder). Contact us if you cannot locate your plan confirmation and Terms & Conditions via email at AmazonFeedback@Asurion.com.
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MSI MAG B550 TOMAHAWK Gaming Motherboard (AMD AM4, DDR4, PCIe 4.0, SATA 6Gb/s, M.2, USB 3.2 Gen 2, HDMI/DP, ATX, AMD Ryzen 5000 Series processors)

4.7 out of 5 stars 4,026 ratings
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Amazon's Choice in Computer Motherboards by MSI

-11% $169.99
List Price: $189.99
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Style: MSI MAG B550 TOMAHAWK
MSI MAG B550 TOMAHAWK
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  • Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update
  • 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

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Product 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.

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
If you'd like a copy of the manufacturer's warranty for a product found on Amazon.com, you can contact the manufacturer directly or visit their website for more information. Manufacturer's warranties may not apply in all cases, depending on factors like the use of the product, where the product was purchased, or who you purchased the product from. Please review the warranty carefully, and contact the manufacturer if you have any questions.

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From the manufacturer

msi mag b550 tomahawk gaming motherboard
msi mag b550 tomahawk gaming motherboard
msi mag b550 tomahawk gaming motherboard

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Chipset / Socket
AMD B550 / AM4 AMD B550 / AM4 AMD B550 / AM4 AMD B550 / AM4 AMD B550 / AM4 AMD B550 / AM4 AMD B550 / AM4
DDR4 Memory Support
4 x DIMM max 128GB; 4866+ MHz 4 x DIMM max 128GB; 4866+ MHz 4 x DIMM max 128GB; 4400+ MHz 4 x DIMM max 128GB; 4400+ MHz x DIMM max 128GB; 4400+ MHz x DIMM max 128GB; 4400+ MHz x DIMM max 128GB; 4400+ MHz
PCIe x16 Slots
2x PCIe x16 2x PCIe x16 2x PCIe x16 2x PCIe x16 2x PCIe x16 1x PCIe x16 2x PCIe x16
Display Output
HDMI, DisplayPort HDMI, DisplayPort HDMI, DisplayPort HDMI, DisplayPort HDMI, DisplayPort HDMI, DisplayPort HDMI, DisplayPort
Audio
Audio Boost Audio Boost Audio Boost Audio Boost Audio Boost Audio Boost Audio Boost
M.2
2x M.2 2x M.2 2x M.2 2x M.2 2x M.2 2x M.2 2x M.2
Wireless
n/a Wi-Fi 6 & Bluetooth n/a Wi-Fi 6 & Bluetooth n/a n/a n/a
Ethernet LAN
2.5G LAN & Gigabit LAN 2.5G LAN Gigabit LAN 2.5G LAN 2.5G LAN Gigabit LAN Gigabit LAN
Mystic Light
16.8 million colors 16.8 million colors 16.8 million colors n/a n/a n/a n/a
Form Factor
ATX ATX ATX Micro-ATX Micro-ATX Micro-ATX ATX

Product guides and documents

Customer reviews

4.7 out of 5 stars
4.7 out of 5
4,026 global ratings

Top reviews from the United States

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Reviewed in the United States 🇺🇸 on September 15, 2022
Style: MSI MAG B550 TOMAHAWKVerified Purchase
One person found this helpful
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Reviewed in the United States 🇺🇸 on August 27, 2022
Style: MSI MAG B550 TOMAHAWKVerified Purchase
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5.0 out of 5 stars I Love It!! No Problems for a 1st Time Builder!
By Will Fisher on August 26, 2022
5800x3d
MSI Ventus RTX 3080
32Gb DDr4 4000 RAM
1Tb Samsung 980 Pro
Thermaltake 850 watt
240mm AIO
This my 3rd gaming PC but first I've built. I'm not a super techy guy, I just like to play games, so if I can build a gaming PC, anyone can! I'll leave the techy stuff to people that know more than me. I'll just say, I put the thing together in a few hours with above components, and when I turned it on, everything just worked! I was worried about problems with the cpu being newer than the board or the RAM not getting the speeds I paid for ect, but nothing, I followed along a YouTube video on how to install windows from a thumb drive and everything just worked. I did end up updating my BIOS and that went smooth as well, and I didn't notice any changes after that.
CineBenchR23 score: 14,400
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8 people found this helpful
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Reviewed in the United States 🇺🇸 on September 15, 2022
Style: MSI MAG B550 TOMAHAWKVerified Purchase
One person found this helpful
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Reviewed in the United States 🇺🇸 on August 27, 2022
Style: MAG B550 TOMAHAWK MAX WIFIVerified Purchase
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5.0 out of 5 stars MSI MAG B550 excelente inversión
By Paul F. on August 27, 2022
Este artículo es de gran calidad. Diseño, calidad de los materiales, acabados geniales. El manejo de la BIOS es sencillo. Muy fácil para actualizar y ha pasado ya las pruebas de exigencia iniciales. Le instale un Ryzen7 5700x con cooler wraith prism rgb y 4 ram 3600 de 16 cada una y funciona muy bien. Con la tarjeta de vídeo rtx 2060 super de 8, quedó excelente. Funciona perfecto el WIFI6 y el Bluetooth, actualizando controladores.
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Reviewed in the United States 🇺🇸 on March 8, 2022
Style: MSI MAG B550 TOMAHAWKVerified Purchase
6 people found this helpful
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Top reviews from other countries

Tim
5.0 out of 5 stars Bootup with M.2 slot
Reviewed in Canada 🇨🇦 on August 20, 2020
Style: MSI MAG B550 TOMAHAWKVerified Purchase
Customer image
5.0 out of 5 stars Bootup with M.2 slot
Reviewed in Canada 🇨🇦 on August 20, 2020
A very nice motherboard, delivered quickly in a very nice condition, installation with AMD Ryzen 5 3600 was easy. Little challenge to boot with M.2 slot: what you need to do is disconnect all the drives on SATA, and switch to CSM mode in bios (cause my SSD was not configured in UEFI), once boot up from M.2 slot, connect back SATA drives, it works perfectly.
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22 people found this helpful
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ibuyzit
1.0 out of 5 stars DO NOT BUY UNTIL THEY FIX BIOS!
Reviewed in Canada 🇨🇦 on November 21, 2020
Style: MSI MAG B550 TOMAHAWKVerified Purchase
17 people found this helpful
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Amazon Customer
5.0 out of 5 stars Great board
Reviewed in the United Kingdom 🇬🇧 on June 2, 2021
Style: MSI MAG B550 TOMAHAWKVerified Purchase
tony
5.0 out of 5 stars Happy
Reviewed in the United Kingdom 🇬🇧 on November 4, 2020
Style: MSI MAG B550 TOMAHAWKVerified Purchase
Yudm
2.0 out of 5 stars Requires UEFI compatible graphics card.
Reviewed in Canada 🇨🇦 on October 14, 2020
Style: MSI MAG B550 TOMAHAWKVerified Purchase
8 people found this helpful
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