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
Condition: New
$74.98
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Availability:
In Stock.
Arrives
Oct 31 – Nov 1
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At a glance
- Condition
- New
- Style
- B550M|K|M.2 x2|Non-WIFI
- Size
- mATX
- Model
- B550M K
- Storage
- 128 GB
- Weight
- 760 g
- CPU Socket
- Socket AM4
- Warranty
- 3 Years Manufacturer
- Works with
- Personal Computer
Features 5
- 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.
Specs 34
| Brand | GIGABYTE |
|---|---|
| CPU Socket | Socket AM4 |
| 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 |
| 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 |
| Chipset Family | AMD B550 |
| Model Number | B550M K |
| Manufacturer | GIGABYTE |
| Unit Count | 1 Count |
| Number of Items | 1 |
| UPC | 889523036006 |
| Number of Packs | 1 |
| Item Weight | 760 g |
| Mfr Part Number | B550M K |
| Item Dimensions L x W x H | 10.43"L x 2.12"W x 10.43"H |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Oct 31 – Nov 1
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Great for me, just what I needed for an upgrade
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
Works as expected, came packed very well and sealed. Nothing broken or missing. Bios is straight forward not complicated at all. Overall very satisfied, but always do your own research when buying parts for compatibility! Otherwise great purchase!
Reviewed in the United States on July 25, 2026 by Daniel E Smith
Good replacement
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
I picked up this as a replacement motherboard that a bios update caused problems. This was a great pick. Easy replacement. Since I reused all drives, windows did not need to reactivated. I read others who changed motherboards needed to reactivate. I am happy with this board.
Reviewed in the United States on September 24, 2026 by Fountain Pens Live
Just a budget king.
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
Just a basic but straight forward board. Over the last few years I have cumulated spare parts. Just happened to have a spare 3600 and RX6650 XT with 16gb of DDR4 and a 512gb and a case and power supply. So I decided to get this board and then sell this system to someone at a price that is fair for what these parts are actually worth. Not the AI price. I have my systems bought at really low prices. So I want someone to get a good gaming rig for $400. Board does what it should. Doesn't have built in RGB. Good. For a budget build no RGB. Who cares? It's gen 4. Not in my build because of the 3600. But that's a cheap upgrade later on. No wifi. Cool. Buy a wifi car, adapter or use Ethernet. You still have options. Very easy bios to use. Just a solid budget board, and even as an Intel fan boy, AMD is still supporting this platform.
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Reviewed in the United States on September 21, 2026 by Jose R.
My preference for a motherboard with just one SYS_FAN header
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
Great motherboard. It has only 1 SYS_FAN header though but overall, it’s exactly what I would prefer on a motherboard to make it easier to setup my fans. Because I’m still missing the CPU and RAM sticks, it doesn’t work for now. Nothing to worry about.
Reviewed in the United States on August 14, 2026 by Joshua Ward
GIGABYTE B550M K AMD AM4 Micro-ATX Motherboard
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
Its a decent motherboard, but is lacking some things like RGB. It does function as intended and is cheap, so hard to beat.
Reviewed in the United States on July 20, 2026 by kpad
Buena
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
Buena
Reviewed in the United States on October 8, 2026 by Rosa Tovar
Producto y servicio excelente .
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
Llegó a tiempo y cumplió con mis expectativas 100 por ciento .Me encantó lo cumplidos que son y el cuidado de la entrega .
Reviewed in the United States on October 9, 2026 by William Bermudez
It works, but lacks just about everything other than essential components
Style: B550M|K|M.2 x2|Non-WIFI
Size: mATX
It's OK. Super budget theme board, lacks USB 3, WiFi, etc... I'm not sure if there is even an rgb header for 3pin... If it was $50 I'd buy it again, otherwise I'd pass and look for a board with more features.
Reviewed in the United States on July 24, 2026 by Joe Livingstone