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ASRock B550M Pro SE AM4 DDR4 SATA 6Gb/s 1 PCIe 4.0 x16 Micro ATX Motherboard - B550M STEEL LEGEND

ASRock B550M Pro SE AM4 DDR4 SATA 6Gb/s 1 PCIe 4.0 x16 Micro ATX Motherboard – B550M STEEL LEGEND

(0 customer reviews) SKU: 13-157-940
$109.99
In Stock

10 in stock

ASRock B550M Steel Legend Micro ATX motherboard with AM4 socket, B550 chipset, DDR4 support, PCIe 4.0, dual M.2 slots, premium power delivery, and RGB lighting for AMD Ryzen desktop PCs.

  • Tool-free installation with slide-and-lock design
  • USB 3.0 with 5Gbps transfer speed and UASP acceleration
  • Compatible with 7mm and 9.5mm 2.5" SATA HDD/SSD
  • Aluminum housing with effective heat dissipation
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SKU: 13-157-940

Description

The ASRock B550M Steel Legend is a high-performance Micro ATX motherboard engineered for AMD Ryzen processors with the AM4 socket. Featuring the AMD B550 chipset, it supports PCIe 4.0 for ultra-fast data transfer, dual M.2 slots for high-speed NVMe SSDs, and up to 128GB of DDR4 memory across 4 DIMM slots. Designed for gaming, content creation, and productivity, the Steel Legend series boasts robust power delivery, premium components, and enhanced durability. Comprehensive connectivity includes USB 3.2 Gen1, USB 2.0, Gigabit Ethernet, 7.1 CH HD Audio, and support for AMD CrossFireX multi-GPU setups. With stylish aesthetics and Polychrome Sync RGB lighting, this motherboard is ideal for modern desktop builds.

Additional information

Brand

ASRock
SKU

13-157-940
Model

B550M Steel Legend
Form Factor

Micro ATX
Socket

AM4
Socket Type

AM4
CPU Socket

AM4
Chipset

AMD B550
CPU Supported

AMD Ryzen (3rd Gen, 4th Gen, and 5th Gen)
Supported CPUs

AMD Ryzen 3000, 4000 G-Series, 5000 Series Desktop Processors
Memory Support

4 x DDR4 DIMM, up to 128GB, 4733+(OC)
Memory Type

DDR4
PCIe Slots

1 x PCIe 4.0 x16, 2 x PCIe 3.0 x1
Memory Slots

4 x DDR4 DIMM
PCI Express x16

1 x PCIe 4.0 x16
M.2 Slots

2 x M.2 (1 PCIe 4.0 x4, 1 PCIe 3.0 x4/SATA)
Max Memory Supported

128GB
PCI Express x1

2 x PCIe 3.0 x1
SATA Ports

4 x SATA 6Gb/s
PCIe Version

PCIe 4.0
USB Ports

Rear: 4 x USB 3.2 Gen1, 2 x USB 2.0; Internal: 2 x USB 3.2 Gen1, 4 x USB 2.0
PCIe x16 Slots

1 x PCIe 4.0 x16
LAN

Realtek RTL8111H, Gigabit Ethernet
PCIe x1 Slots

2 x PCIe 3.0 x1
Audio

Realtek ALC897, 7.1 CH HD Audio
Graphics Output

HDMI, DisplayPort (CPU dependent)
Multi-GPU

AMD CrossFireX
RGB

Polychrome SYNC
VRM

8+2 Power Phase Design
Max Memory

128GB DDR4
Expansion Slots

1 x PCIe 4.0 x16, 2 x PCIe 3.0 x1
Dimensions

24.4cm x 24.4cm
Multi-GPU Support

AMD CrossFireX
Power Delivery

Enhanced/Robust
Durability

Steel Legend Series (Enhanced Durability)
Aesthetics

Stylish, Steel Legend Series
RGB / Lighting

Yes (Polychrome SYNC)
BIOS

UEFI AMI
VRM Phases

8+2 Power Phase Design

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Frequently Asked Questions

  • This product comes with a standard 2-year manufacturer warranty that covers any defects in materials and workmanship.
  • Please check the detailed specifications to ensure compatibility with your system. If you're unsure, our customer support team can help you determine compatibility.
  • Yes, we offer professional installation services for an additional fee. Please contact our support team to arrange for installation.

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