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ASUS ROG STRIX B550-A GAMING B550 Motherboard

Original price was: £142.11.Current price is: £119.99. (as of 10/21/2026 16:36 PST - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

ASUS ROG STRIX B550-A GAMING B550 motherboard with an AMD AM4 socket for Ryzen 5000 Series, 4000 G-Series and 3000 Series Desktop Processors. It lists PCIe 4.0-ready support, dual M.2, USB 3.2 Gen 2 Type-C, HDMI 2.1, DisplayPort 1.2 and Intel 2.5Gb Ethernet with ASUS LANGuard.

SKU: B08KBSRYGF Category:

Quick Summary

The ASUS ROG STRIX B550-A GAMING B550 is a motherboard with an AMD AM4 socket. It is ready for Ryzen 5000 Series, 4000 G-Series and 3000 Series Desktop Processors, and the stated connectivity includes PCIe 4.0-ready support, dual M.2, USB 3.2 Gen 2 Type-C, HDMI 2.1 and DisplayPort 1.2 output support.

Who It Is Best For

This motherboard is for buyers building or upgrading a system around an AMD AM4 processor from the stated Ryzen 5000 Series, 4000 G-Series or 3000 Series Desktop Processors. It also suits users who want the listed connection options and the stated network feature.

Key Details

DetailVerified information and buyer relevance
Product typeMotherboard with the ROG STRIX B550-A GAMING B550 identity.
SocketAMD AM4 socket for the stated Ryzen 5000 Series, 4000 G-Series and 3000 Series Desktop Processors.
ConnectivityPCIe 4.0-ready, dual M.2, USB 3.2 Gen 2 Type-C, HDMI 2.1 and DisplayPort 1.2 output support.
NetworkingIntel 2.5Gb Ethernet with ASUS LANGuard.
Power solutionTeamed power stages with ProCool power connector, high-quality alloy chokes and durable capacitors.

Why Buyers Choose It

  • The AMD AM4 socket gives a clear processor fit check before ordering.
  • PCIe 4.0-ready and dual M.2 support are useful if you are planning around the stated storage and expansion options.
  • USB 3.2 Gen 2 Type-C, HDMI 2.1 and DisplayPort 1.2 output support give several connection points to review against your wider build.
  • Intel 2.5Gb Ethernet with ASUS LANGuard adds a clearly stated networking feature to compare with your setup needs.

What To Know Before You Buy

Check that your processor is one of the stated Ryzen 5000 Series, 4000 G-Series or 3000 Series Desktop Processors and that your build is based on an AMD AM4 socket. Review the listed connection options, especially PCIe 4.0-ready support, dual M.2, USB 3.2 Gen 2 Type-C, HDMI 2.1 and DisplayPort 1.2, so the board matches your planned system.

Common Buyer Questions

Which processors does it fit?
It is ready for Ryzen 5000 Series, 4000 G-Series and 3000 Series Desktop Processors on the AMD AM4 socket.

What storage or expansion features are listed?
The stated features include PCIe 4.0-ready support and dual M.2.

What networking feature is mentioned?
It includes Intel 2.5Gb Ethernet with ASUS LANGuard.

Which display outputs are supported?
HDMI 2.1 and DisplayPort 1.2 output support are listed.

Final Buying View

Choose this motherboard if you need the stated AMD AM4 platform and want the listed connectivity, networking and power-solution features. Confirm your processor choice and the connection options you need before ordering.

Brand

ASUS

Manufacturer

ASUS

Binding

Personal Computers

Model

90MB15J0-M0EAY0

Color

Black

Width

1.7716535415 Inches

Height

9.6456692815 Inches

Length

12.0078740035 Inches

Item Weight

2.926416065788 pounds

Size

ATX

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