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GIGABYTE B550M K Motherboard, Supports AMD AM4 Ryzen 5000 Processors, Micro-ATX, DDR4, Dual M.2, SATA 6Gb/s, Realtek GbE LAN, PCIe 4.0

  • Based on 1,770 reviews
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Availability: In Stock.
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Arrives Saturday, Apr 5
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Style: B550M K


Features

  • AMD AM4 Socket: Supports AMD Ryzen 5000 Series or Ryzen 5000 G-Series or Ryzen 4000 G-Series and Ryzen 3000 Series Processors
  • DDR4 Compatible: Dual Channel ECC or Non-ECC Unbuffered DDR4, 4 DIMMs
  • Sturdy Power Design: 4 plus 2 Phases Digital Twin Power Design with Low RDS(on) MOSFETs
  • Connectivity: PCIe 4.0 x16 Slot, Dual Ultra-Fast NVMe PCIe 4.0 or 3.0 x4 M.2 Connectors, Realtek GbE LAN chip
  • Fine Tuning Features: RGB FUSION 2.0, Supports Addressable LED and RGB LED Strips, Smart Fan 5, Q-Flash Plus Update BIOS without installing, CPU, Memory, and GPU

Description

AMD AM4 Socket: Supports AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series and Ryzen 3000 Series Processors DDR4 Compatible: Dual Channel ECC/ Non-ECC Unbuffered DDR4, 4 DIMMs Sturdy Power Design: 4+2 Phases Digital Twin Power Design with Low RDS(on) MOSFETs Connectivity: PCIe 4.0 x16 Slot, Dual Ultra-Fast NVMe PCIe 4.0/3.0 x4 M.2 Connectors, Realtek GbE LAN chip Fine Tuning Features: RGB FUSION 2.0, Supports Addressable LED & RGB LED Strips, Smart Fan 5, Q-Flash Plus Update BIOS without installing, CPU, Memory, and GPU. GIGABYTE B550M K motherboards maximize your PC's potential with AMD StoreMI technology. StoreMI accelerates traditional storage devices to reduce boot times and enhance the overall user experience. This easy-to-use utility combines the speed of SSDs with the high capacity of HDDs into a single drive, enhances the read/write speeds of the device to match that of SSDs, bolsters data performance for great value, and transforms the everyday PC to a performance driven system.

Brand: GIGABYTE


CPU Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD Ryzen 5000 Series/ Ryzen 5000 G-Series/ Ryzen 4000 G-Series and Ryzen 3000 Series Processors


Chipset Type: AMD AM4


Memory Clock Speed: 3200


Platform: Windows


Model Name: B550M K


Memory Storage Capacity: 128 GB


RAM: ‎DDR4


Memory Speed: ‎3200


Number of USB 2.0 Ports: ‎4


Brand: ‎GIGABYTE


Series: ‎B550M K


Item model number: ‎B550M K


Item Weight: ‎1.68 pounds


Product Dimensions: ‎10.43 x 10.43 x 2.12 inches


Item Dimensions LxWxH: ‎10.43 x 10.43 x 2.12 inches


Manufacturer: ‎GIGABYTE


Country of Origin: ‎China


Date First Available: ‎February 2, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 5

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


  • Great AM4 Motherboard
Style: B550M AORUS ELITE AX
This board has worked perfectly for a budget Ryzen 5 5600GT build. The board arrived in brand-new condition (Some reviews expressed otherwise) and worked the first time without any issues. The VRM's are very high quality and have no problem with thermals because of the large heatsink. The wifi is very fast and I had no issues installing all the necessary drivers needed for this new build. The BIOS is probably my favorite part of this board. I have never used a gigabyte motherboard before (Always ASUS or MSI in the past) but this is making me reconsider those choices. It is so much easier to adjust the fan curves and update the bios on this board compared to the competition it makes my head spin. You can even save fan curves so they won't just vanish when you update BIOS which is something I've never had the luxury of doing on MSI boards. The fan stop feature is also another no-brainer feature that MSI and ASUS just don't seem to have on the boards I've used for some reason. It allows you to make a fan completely stop under a certain temperature even if it isn't a zero RPM fan which is AMAZING. I strongly recommend this board! ... show more
Reviewed in the United States on May 28, 2024 by JT

  • Works right out of the box paired with Ryzen 7 5700g
Style: B550M DS3H AC
Just finished building my new PC build (my third PC I built so far), it worked right out of the box with the coming with the latest BIOS update that supports my new CPU: Ryzen 7 5700g. I was almost afraid I would have to use my old 3200g from my previous build to flash the BIOS, but no, it booted without any problems. Just got done installing Windows 11 on a 500 GB m.2 SSD, along with all driver updates and everything so far is running smoothly. Re-using my 32 GB of G.SKILL RAM (only 2400mhz, will upgrade or OC later), my old 1660 Super GPU will be put in tomorrow after I dust it off and the old PC will be off to the garage. The B550M is a great motherboard and very affordable. It took me quite a long time to finally find a good mATX board to go with my Ryzen 7 5700g and this is that board. Highly recommended for those of us like me needing a budget friendly workstation (3ds Max, Mudbox, Wondershare Filmora, Photoshop, Unity, Cura (3d prints)) and great for some modern gaming too! ... show more
Reviewed in the United States on December 11, 2022 by Jamie O'Neill Jamie O'Neill

  • buen producto
Style: B550M DS3H AC
excelente producto buena calidad
Reviewed in the United States on January 26, 2025 by david

  • Great board for my rig, with some cons though...
Style: B550M AORUS ELITE AX
I've never been to finicky with the visual presentation of my board, whether it be more stylish and sleek or conventional and industrial looking. Performance and ease of use are above all else. This board succeeds with the former, but can be lackluster with some of the latter. Physical installation was a breeze, but the same cannot be said about Gigabyte's proprietary software application. While the BIOS is inoffensive and easy to use, the Control Center app is an absolute nightmare. GCC tries at every opportunity to override every other first-party software dedicated to hardware control. I removed Gigabyte Fusion entirely because custom color selection from the software wasn't remotely accurate to what displayed on hardware ARGB. Even after removing everything related to Fusion in my system registry, just running GCC in the background caused hardware ARGB to flicker, and would break my PWM settings even though I don't have any other fan control software installed. I eventually just disabled GCC altogether, and even still, the Update Service will sometimes self-launch in the background randomly and inconsistently upon startup every now and then. The real pain, however, was the onboard wireless adapter. Every single component got the necessary firmware and drivers they required via LAN upon my first boot...EXCEPT the wireless adapter. I tried over and over to manually install the latest drivers listed on Gigabyte's own website, and it still would not function. It took reinstalling a wireless card for Windows to even bother retrieving the driver automatically. The adapter was now functional, but wouldn't detect 5G networks. It took hours of browsing tech forums before being directed to an off-site forum hosting Realtek drivers, then trial-and-error through downloading and attempting to manually install a few compressed packages from there before finally getting the device manager to recognize one of them and successfully install it. My last gripe would be the front-panel USB 3.0 hub location. I have no idea why Gigabyte thought it'd be great placing it right where most people would install their card in the lower PCIE port to give their storage devices some breathing room. All PC cases I've owned had beefy 3.0 plugs that need additional space lest you bend and damage either the pins, board or cable. Thankfully I'm not entirely dependent on having the front panel USB ports, but it would be nice to have them working for my leisure. All that being said, I can't complain too much or really dissuade anybody from getting this board. So as long as you avoid GCC like the plague and configure your preferred performance settings in the BIOS, it gets the job done. CPU and air cooler are snug and firmly sit, RAM runs well, all my temps are read correctly and my SSD has room to breathe. I only wish Gigabyte tech support was more helpful and informative than some obscure tech forum sites. ... show more
Reviewed in the United States on March 31, 2024 by BTL BTL

  • It’s a great purchase, especially for the price
Style: B550M K
I love this motherboard, it was quite easy to connect everything, as long as you got the right power supply unit. I think this product is worth the money, as I have seen slightly faster speeds on my gaming and overall computer use, and it’s at a good price, plus it comes with two m.2 ssd slots, which is great for storage! ... show more
Reviewed in the United States on February 21, 2025 by Caleb

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