Technical Snapshot

The ASRock B550 STEEL LEGEND is a ATX motherboard built on the B550 chipset for AMD AM4 processors. It supports DDR4 memory up to 128 GB across 4 DIMM slots. Expansion includes PCIe 4.0 with 2 M.2 slots. Connectivity features None and 2.5GbE Ethernet.

Use Case
Gaming builds, workstation computing, system building
Compatibility
AMD AM4 processors, DDR4 memory
Category
ATX Motherboard — B550
ASRock Steel Legend

B550 STEEL LEGEND

B550 · AMD AM4 · ATX · DDR4 up to 128 GB

Determines which CPU processors are physically compatible. AMD AM4 supports AMD Ryzen 1000–5000 series and select Athlon processors.
Socket AMD AM4
Controls data flow between the CPU, RAM, storage, and expansion slots. Higher-end chipsets unlock overclocking, more PCIe lanes, and USB4.
Chipset B550
Maximum total system memory capacity when all DIMM slots are populated with the highest-density modules.
Max RAM 128 GB
Peripheral Component Interconnect Express version. PCIe 5.0 delivers 128 GB/s total bandwidth, double that of PCIe 4.0.
PCIe Generation PCIe 4.0
MPNB550 STEEL LEGEND
EAN4710483612848
CategoryMotherboards
Contact for Price
Comparing motherboards? Open Comparison Tool →

Connectivity & I/O

Ethernet 2.5GbE
M.2 Storage 2
PCIe Bus PCIe 4.0
I/O backplate visual — refer to official ASRock product page for high-resolution rear panel imagery

Motherboard Anatomy

ASRock B550 STEEL LEGEND board layout
+
+
+

Full Specifications

Data sourced from official ASRock product specifications
Platform
Chipset B550
Socket AMD AM4
Form Factor ATX
Memory Type DDR4
DIMM Slots 4
Max RAM 128 GB
PCIe Generation PCIe 4.0
M.2 Slots 2
Bluetooth
LAN 2.5GbE
USB (Rear I/O)
Audio
Series Steel Legend

Support & Downloads

B550 BIOS Update (Latest) Version 2024 · UEFI Firmware · Check ASRock support for latest version
ASRock Support →
BIOS Recovery Tool ASRock BIOS recovery utility · USB-based
ASRock Support →
B550 Chipset Driver Package AMD/Intel chipset drivers · Windows 10/11
ASRock Support →
LAN / Wi-Fi / Bluetooth Drivers Latest network drivers for this motherboard
ASRock Support →
Audio Drivers Audio codec driver package
ASRock Support →
ASRock B550 STEEL LEGEND User Manual PDF · Complete installation and configuration guide
ASRock Support →
Quick Start Guide PDF · Hardware installation quick reference
ASRock Support →
← Back to ASRock Motherboard Catalog

Frequently Asked Questions

What socket does the B550 STEEL LEGEND use?

The B550 STEEL LEGEND uses the AMD AM4 socket, compatible with AMD Ryzen 1000–5000 series and select Athlon processors.

How much RAM does the B550 STEEL LEGEND support?

The B550 STEEL LEGEND supports up to 128 GB of DDR4 memory across 4 DIMM slots.

Does the B550 STEEL LEGEND have Wi-Fi?

No, the B550 STEEL LEGEND does not include built-in Wi-Fi. An external Wi-Fi adapter or PCIe Wi-Fi card can be added.

How many M.2 slots does the B550 STEEL LEGEND have?

The B550 STEEL LEGEND features 2 M.2 slots for high-speed NVMe SSD storage with PCIe 4.0 support.

What chipset does the B550 STEEL LEGEND use?

The B550 STEEL LEGEND is built on the AMD B550 performance chipset with modern connectivity, offering ATX form factor design for AMD platforms.

JSON-LD Structured Data — Product + FAQ + Breadcrumb
{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "ASRock B550 STEEL LEGEND",
  "brand": {
    "@type": "Brand",
    "name": "ASRock"
  },
  "sku": "B550 STEEL LEGEND",
  "mpn": "B550 STEEL LEGEND",
  "gtin13": "4710483612848",
  "description": "ASRock B550 STEEL LEGEND B550 AMD AM4 ATX motherboard \u2014 DDR4, 4 DIMM slots, up to 128 GB, PCIe 4.0, 2 M.2 slots, 2.5GbE. Wholesale pricing from Evergreen Computer Technology.",
  "category": "Computer Hardware > Motherboards > ASRock B550 Motherboards",
  "image": [
    "data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 400 400%22%3E%3Crect fill=%22%2312121e%22 width=%22400%22 height=%22400%22/%3E%3Ctext x=%2250%25%22 y=%2250%25%22 dominant-baseline=%22middle%22 text-anchor=%22middle%22 fill=%22%23555577%22 font-size=%2214%22 font-family=%22Arial%22%3EProduct Image%3C/text%3E%3C/svg%3E"
  ],
  "url": "https://evergreencomputer.com.hk/products/motherboards/asrock-b550-steel-legend.html",
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "Chipset",
      "value": "B550"
    },
    {
      "@type": "PropertyValue",
      "name": "Socket",
      "value": "AMD AM4"
    },
    {
      "@type": "PropertyValue",
      "name": "Form Factor",
      "value": "ATX"
    },
    {
      "@type": "PropertyValue",
      "name": "Memory Type",
      "value": "DDR4"
    },
    {
      "@type": "PropertyValue",
      "name": "DIMM Slots",
      "value": "4"
    },
    {
      "@type": "PropertyValue",
      "name": "Max RAM",
      "value": "128 GB"
    },
    {
      "@type": "PropertyValue",
      "name": "PCIe Generation",
      "value": "PCIe 4.0"
    },
    {
      "@type": "PropertyValue",
      "name": "M.2 Slots",
      "value": "2"
    },
    {
      "@type": "PropertyValue",
      "name": "Bluetooth",
      "value": "\u2014"
    },
    {
      "@type": "PropertyValue",
      "name": "LAN",
      "value": "2.5GbE"
    },
    {
      "@type": "PropertyValue",
      "name": "USB (Rear I/O)",
      "value": "\u2014"
    },
    {
      "@type": "PropertyValue",
      "name": "Audio",
      "value": "\u2014"
    },
    {
      "@type": "PropertyValue",
      "name": "Series",
      "value": "Steel Legend"
    }
  ]
}