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GIGABYTE

GIGABYTE B550M K AMD AM4 Micro-ATX Motherboard, Supports Ryzen 5000/4000/3000 Series Processors, DDR4, 3+3 Power Phase, 2X M.2, PCIe 4.0, USB 3.2 Gen 1, GbE LAN, Q-Flash

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, May 5
Order within 15 hours and 19 minutes
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Style: B550M|K|M.2 x2|Non-WIFI


Size: mATX


Features

  • AMD Socket AM4: Ready to support AMD Ryzen 5000/4000/3000 Series Processors
  • Enhanced Power Solution: Digital 3+3 VRM Design and premium chokes and capacitors for steady power delivery.
  • Advanced Thermal Armor: Chipset heatsinks for better heat dissipation.
  • Boost Your Memory: Compatible with DDR4 and supports 4 DIMMS with Extreme Memory Profile support.
  • Comprehensive Connectivity: 1x Ultra Durable PCIe 4.0 x16 slot, 1x PCIe 4.0 M.2 slot, 1x PCIe 3.0 M.2 slot, 4x USB 3.2 Gen 1 ports for hassle-free setup.

Description

The GIGABYTE B550M K supports AM4 Ryzen 5000 Processors and features unparalleled performance. GIGABYTE B550 motherboards come with upgraded power design, high grade storage standards, and outstanding connectivity that enables you to optimize your performance.

Brand: GIGABYTE


CPU Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series


Chipset Type: AMD B550


Memory Clock Speed: 3200 MHz


Platform: Windows 11


Model Name: B550M K


CPU Model: Ryzen 5


Processor Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series


Chipset Type: AMD B550


Memory Clock Speed: 3200 MHz


Platform: Windows 11


CPU Model: Ryzen 5


Memory Storage Capacity: 128 GB


Ram Memory Maximum Size: 128 GB


Main Power Connector Type: ATX


Graphics Card Interface: PCI Express 4.0


Memory Slots Available: 4


Number of Ports: 6


S/PDIF Connector Type: Optical


System Bus Standard Supported: SATA 3


Total SATA Ports: 4


USB 2.0: 4


Total Usb Ports: 4


Number of Ethernet Ports: 1


Total Number of HDMI Ports: 1


Total PCIe Ports: 2


Brand: GIGABYTE


Model Name: B550M K


Model Number: B550M K


Manufacturer: GIGABYTE


UPC: 889523036006


Item Weight: 760 Grams


Warranty Description: 3 Years Manufacturer


Item Dimensions L x W x H: 10.43"L x 2.12"W x 10.43"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 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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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Excellent motherboard — my PC is now super fast! 🚀
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
⭐⭐⭐⭐⭐ I recently installed the GIGABYTE B550M K, and the difference was immediate. I used to have my Ryzen 5 on an A320HM motherboard, and even though it worked, it didn’t let the CPU reach its full potential. After switching to this one, my PC runs much faster and more stable. What I like the most is that it’s the right board for AM4 processors, with great build quality and a very reasonable price. It allowed me to complete the mid-range PC I wanted without spending too much, and everything worked perfectly from the first boot. It also has two M.2 slots, which is great if you want a fast SSD. Plus, the Micro-ATX format fits nicely in my small case while leaving room for everything I need. In short, this was an excellent purchase — it does exactly what it promises and gave my computer a whole new life. 💯 Definitely a 5-star product! ... show more
Reviewed in the United States on October 22, 2025 by Omar Bido Mesa
    • 😁👍
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
It's awesome, works great 😀👍
Reviewed in the United States on February 20, 2026 by aloysius wassili
    • Works as intended, no RGB headers
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
NO RGB HEADERS Works as intended with no issues, great value for AM4 board with 4 ram slots. Easy install/BIOS setup
Reviewed in the United States on March 31, 2026 by derik han
    • Basic mobo
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
Great value but only cons is only 1 header for op fans... you need 2 minimum for a basic case... 1 fan front intake one for exaust...
Reviewed in the United States on January 7, 2026 by PCPanamaCrew
    • Good Quality, Great for DIY system
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
Built my own system with this board (AMD Ryzen 5500). Love the qualiity of the board. Wish it has more usb connections available. Boot up is quick, sounds works great for what i need.
Reviewed in the United States on February 23, 2026 by Kaden A
    • Would recommend
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
Very good motherboard for the price even comes with two nvme slots! Easy to install and setup.
Reviewed in the United States on March 1, 2026 by Brendan Citron
    • Avoid this Gigabyte B550M K
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
Serious regrets having purchased this nightmare of a Motherboard. After installing an OS a horrible whining and static was super audible through speakers and wired headset. I made several hardware changes trying to find the source including deactivating the onboard sound and installing a USB external sound card and still it made the horrible noise. While further troubleshooting the problem I realized that the noise existed even while the board was powered OFF so i unplugged the power chord and the noise would stop After researching the problem further I attempted to update the BIOS using Q-Flash via USB and watching endless videos on how to update the BIOS the B550M K refused read the file and failed after 20+ attempts. I have screwed around with this MB for so long my window to return it expired so I am having to eat the cost and ordered me a much trusted MSI board. ... show more
Reviewed in the United States on September 3, 2025 by DSullSD
    • Very reliable would buy again
Style: B550M|K|M.2 x2|Non-WIFI Size: mATX
This is the 3rd time I have owned this board and it’s never done be wrong easy bios and bios updates plenty of m.2 slots nice and stable if your doing a budget am4 build would definitely recommend this
Reviewed in the United States on February 13, 2026 by Travis Conrad

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