Search  for anything...
ASRock

ASRock B550M Steel Legend Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors Motherboard

  • Based on 1,114 reviews
Condition: New
Checking for the best price...
$109.99 Why this price?
Save $45.00 was $154.99

Buy Now, Pay Later

As low as $18.33 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Sep 4
Order within 5 hours and 43 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Style: Steel Legend


Features

  • Supports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen Processors
  • 10 Power Phase Design, Dr. MOS
  • Supports DDR4 4733+ (OC)
  • 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 Key E for WiFi
  • Graphics Output Options: HDMI, DisplayPort

Description

Steel Legend represents the philosophical state of rock-solid durability and irresistible aesthetics. Built around most demanding specs and features, the Steel Legend series aims at daily users and mainstream enthusiasts! Providing a strong array of materials/components to ensure a stable and reliable performance.

Brand: ASRock


CPU Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD Ryzen 5000/4000/3000 Series


Chipset Type: AMD B550


Memory Clock Speed: 2400 MHz


Platform: Windows 10


Model Name: B550M STEEL LEGEND


CPU Model: AMD A4


Processor Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD Ryzen 5000/4000/3000 Series


Chipset Type: AMD B550


Memory Clock Speed: 2400 MHz


Platform: Windows 10


CPU Model: AMD A4


Memory Storage Capacity: 128 GB


Ram Memory Maximum Size: 128 GB


Main Power Connector Type: 24-Pin


Graphics Card Interface: PCI Express


Memory Slots Available: 2


Number of Ports: 12


S/PDIF Connector Type: Optical


System Bus Standard Supported: SATA 3


Total SATA Ports: 6


USB 2.0: 2


Total Usb Ports: 12


Number of Ethernet Ports: 1


Total Number of HDMI Ports: 1


Total PCIe Ports: 4


Chipset Family: AMD B550


Brand: ASRock


Model Name: B550M STEEL LEGEND


Model Number: B550M STEEL LEGEND


Manufacturer: ASRock


Number of Items: 1


Global Trade Identification Number: 05


Item Weight: 1 kg


Mfr Part Number: B550M STEEL LEGEND


Warranty Description: 3 years


Item Dimensions L x W x H: 11.5"L x 2.8"W x 12"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 4

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • 1 year later, and still keeping up.
Style: Steel Legend
I have zero complaints. I built a custom PC with mid-grade components to do some light gaming and internet use. This board is great. It doesn't support USB-C, but that's such a small issue in my book that I don't even see it as a problem. If you just have to have that, you'll need to look elsewhere. This is an amazing board for the money, and it looks really good in my white-out, see-through case build with RGB. ... show more
Reviewed in the United States on July 3, 2026 by Paul B.
    • My only option
Style: Steel Legend
Bought to solve a power issue with my 4700GE ryzen processor. This board is able to deliver a consistent 7 watts to the cpu and eliminated my BSODs from the last board I had. Definitely recommended if you are replacing a ryzen Lenovo matx desktop mobo and have all the components to salvage for this one. It's hard to find boards that just work with OEM parts and I was happy this one did. ... show more
Reviewed in the United States on April 27, 2026 by Jacob Milnickel
    • Incredibly Reliable and Budget Friendly MoBo
Style: Steel Legend
Review Image by Ryne C
Review Image by Ryne C
This motherboard came incredibly quick, literally next day, and it has worked amazing ever since I opened it out of the box. I paired this motherboard with a Ryzen 7 5800xt and GeForce rtx 3060 12gb gpu and I haven’t had a single issue with the motherboard since. The ARGB ports work amazing and connect extremely well with my controller and the rgb on the motherboard is perfect and not too bright. The RGB app (ASRGB Polychorme) is easy to work with and while it has a limited number of RGB options, they are good options that work for the everyday user. ... show more
Reviewed in the United States on August 21, 2026 by Ryne C
    • El mejor mobo de asrock
Style: Steel Legend
Trabajando 100%
Reviewed in the United States on August 25, 2026 by hector
    • This is an awesome B550.
Style: Steel Legend
Review Image by Jesús Zapata
Plenty USB ports, enough SATA ports, 2 Nvme.2 slots (second one is SATA and disables ports 3456), 1 m2 key. Worked right out the box, the chipset drivers are still a bit buggy due to its recent launch. I expect it to get better in a couple of months. Had a couple of issues with RAMs, but they are now fixed on the new BIOS update. Please select RAMs in the QVL list to avoid these issues, I had random crashes and windows corruption and found out it was due to RAM not being compatible with each other using the 4 slots (Team Group Nighthawk). The RGB is beautiful and I didn't have any problems to match everything together. The only thing the software didn't recognize was the GPU, but this is known with the MSI RX5700XT Gaming X. Totally recommended! ... show more
Reviewed in the United States on July 31, 2020 by Jesús Zapata
    • Legend build
Style: Steel Legend
My beast 2tb ssd 4070 ti 64 gigs ram ryzen 9
Reviewed in the United States on July 14, 2026 by samuel pisani
    • I love it!
Style: Steel Legend
Great motherboard, looks amazing, delivers those PCIE 4.0 speeds perfectly, easy install, full of functionality, well worth the money.
Reviewed in the United States on May 22, 2025 by Zach
    • It's a very good motherboard.
Style: Steel Legend
I really had a good update and to this day I bought this board looks really good on my PC and it was what I was looking for! the shipment was really fast and I'm left with the good quality
Reviewed in the United States on August 9, 2025 by Leo

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...