Gigabyte B550M K AMD AM4 Micro-ATX Motherboard, Supports Ryzen 5000/4000/3000 Series Processors, DDR4

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💡 How to pick a motherboard

What to look for:

Socket matches your CPU (AM5, LGA1851, etc.)
Form factor fits your case (ATX, mATX, ITX)
RAM type (DDR4 or DDR5) and slot count

💰 Budget: $100-$150. Mid-range: $180-$280. High-end: $300+ with WiFi, PCIe 5.0

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ProductSocketForm FactorChipsetWiFiValuePrice

B550M K AMD AM4 Micro-ATX Motherboard, Supports Ryzen 5000/4000/3000 Series Processors, DDR4

Gigabyte★★★★4.4🔥 DEAL -$30

AM4

mATX

B550

None

$99.99

$69.99

2 stores

Specifications

SocketAM4

Form FactormATX

MemoryDDR4

RAM Slots4

Max RAM128

WiFiNone

Weight760 Grams

Model #B550M K

UPC889523036006

PERFORMANCE

59%

Customer Reviews★★★★★4.8 · 5 reviews

★★★★★Good value.

Good value, has 2x SSD slots along with 4x PCIE, performs well and managed to survive my pc building skills.

BadAtGames · 2026-03-19 · via bestbuy

★★★★★Gigabyte B550 Eagle Wifi6 Motherboard.

This is the second b550 eagle motherboard that I bought.  It was so great that I bought it again.

Orlan724 · 2025-11-28 · via bestbuy

★★★★★Great Value Board with Solid Features

This motherboard has been a great addition to my build. Setup was straightforward, and everything worked right out of the box with no headaches. The layout is clean, making it easy to install components without feeling cramped. Performance has been smooth and reliable, whether for everyday use or heavier tasks. The built-in WiFi 6 is a nice bonus—fast, stable, and saves you from needing extra adapters. It also has plenty of ports and expansion options, so there’s room to grow your setup over time. Overall, it’s a dependable board that balances price and performance really well. If you’re building a mid-range system, this is a solid choice that gets the job done without any fuss.

jimmy · 2026-04-26 · via amazon

★★★★★one of the best budget boards, i think

the positives, I saved money by buying from amazon resale and gigabyte is in my opinion is one of the best. I have a 13-year-old gigabyte motherboard that's still works for windows 10. super great budget board, easy software for people like me who are old. Use pick parts for compatibility, it helps me, and its fast. The negative's, the pcie ez-latch is different, so be careful with it, and I needed a small round file to open the round hole on the i/o shield, where the q flash plus button is. to line it up right. it's a great great motherboard, I love it

thomas · 2026-05-10 · via amazon

★★★★★Perfect for this RAM shortage times.

If the RAM shortage is preventing you from building something great, this motherboard is the solution, is compatible with older CPUs and the classic DDR4 RAM and at the same time it has WiFi6 if you need it, is a mix of current tech mixed with older tech, perfect for this RAM shortage in 2026, fan and LED connections are limited but is alright, is a budget temporary PC for my nephew with a 4060 GPU, it all depends on the what you need or want.

Francisco · 2026-02-16 · via amazon

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