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Asrock B550M Steel Legend AMD B550 Socket AM4 micro ATX Motherboard
The Steel Legend Micro ATX motherboard symbolizes the concept of pure durability and alluring aesthetics and features a robust range of components to ensure a steady and reliable performance.
Features
General
SKU | 29F-6FC-80F |
Features
Brand | ASRock |
Model Number | b550m Steel Legend |
Motherboard Chipset | B550 Chipset (Ryzen AM4) |
CPU Socket Type | AM4 |
Outputs | DisplayPort, HDMI |
Form Factor | Micro ATX |
Description
Asrock B550M Steel Legend AMD B550 Socket AM4 micro ATX Motherboard


TOUGH AS STEEL, A TRUE LEGEND
The Steel Legend Micro ATX motherboard symbolizes the concept of pure durability and alluring aesthetics and features a robust range of components to ensure a steady and reliable performance. This AMD B550M Steel Legend motherboard from ASRock is equipped for 3rd Gen AMD Ryzen™ processors and future generation processors. With ASRock Super Alloy features you get to appreciate the XXL Aluminium Heatsink, first-class components and 2oz Copper PCB layers. Featuring the quick Dragon 2.5Gb/s LAN platform and a wealth of USB connectivity, and Dual M.2 with M.2 armor, this solution is compatible to perform for SSD. Enjoy spectacular lighting and with Polychrome RGB Sync-certified devices you can synchronize across your compatible accessories.
Please note: B550 Motherboards are ready for 3rd Gen AMD AM4 Ryzen™ Processors and Future AMD Ryzen™ Processors.
Not Compatible with AMD Ryzen™ 5 3400G & AMD Ryzen™ 3 3200G.
Get Endless Performance Possibilities with Steel Style


SYNCHRONIZE ACROSS THE RGB SYNC-CERTIFIED ACCESSORIES
ASRock motherboards deliver stunning performance and superior aesthetics with an array of lighting effects. Gamers get very comprehensive control to perform the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any RGB devices smoothly. Includes Two Addressable RGB LED Headers and Two RGB LED Headers.
*Devices can be synchronized across the Polychrome RGB Sync-certified accessories as well. *The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters. *The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters.
Component Breakdown of the B550M Steel Legend


1. Supports 3rd Gen / future AM4 AMD Ryzen™ Processors | 2. Dual Channel DDR4 Memory Technology
3. 24Pin ATX Hi-Density Connector | 4. XXL Aluminium Alloy Heatsink | 5. 8+4Pin 12V Hi-Density Power Connector
6. Premium 60A Power Choke / 10 Power Phase Design / Digi Power with 50A Dr.MOS
7. PCIe Steel Slot, 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1
8. Hyper M.2 PCIe Gen4x4 / Unbeatable Heatsink Armor
9. Premium Audio / Realtek ALC 1200 Codec / Nahimic Audio / PCB Shielding Layers
10. M.2 (Key E) Slot for Wi-Fi (*Module is not included) | 11. M.2 Slot running PCIe Gen3 x2 & SATA3
Boosted for Maximum Networking Performance


DRAGON 2.5 GB/S LAN | DUAL USB 3.2 GEN2 TYPE A+C | FRONT USB 3.2 GEN1 TYPE-C
ASRock B550M Steel Legend features I/O Armor and reserves more flexible space with an adjustable IO shield when installing, thus fitting chassis perfectly without any issues. Includes two of the most used connectors with HDMI and DisplayPort combo. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you’ll enjoy the faster and uncompromising connectivity experience for gaming, file transfers and backups. This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear I/O for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates. Features 8 USB 3.2 Gen1 (4 Front, 4 Rear) giving you a wide variety of connections.
Unbeatable Heatsink Armor
Reinforced Steel Slot
Equipped to Deliver an Extreme Audio Performance






DUAL M.2 SOCKETS FOR SSD
Engineered with an aluminium alloy heatsink top cover which dissipates heat efficiently, underneath its strong cover are Two M.2 Key M sockets for rapid SSDs. Plus, the Hyper M.2 socket supports PCIe Gen4 x4 – while the M.2 socket is ready to run PCIe Gen3 x2 and SATA3 mode.
STRONG PROTECTION
The strengthened steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include extra anchor points, stronger latch, ensures signal stability, and makes sure heavy graphics cards to be well-installed
AUDIO THAT MATTERS
Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.
Specification
Core Specifications
Edition ┃ B550M Steel Legend
Form Factor ┃ MicroATX
CPU Socket ┃ AM4
Chipset ┃ AMD B550
RAM Memory Support
Memory Type ┃ DDR4
Memory Channel ┃ Dual (2)
Memory Type (ECC) ┃ ECC/Non-ECC
Memory Type (R/U) ┃ UDIMM (Unbuffered)
Memory Speed (Mhz):
DDR4 - 2133
DDR4 - 2400
DDR4 - 2667
DDR4 - 2933
DDR4 - 3200
DDR4 - 3466(OC)
DDR4 - 3600(OC)
DDR4 - 3733(OC)
DDR4 - 3800(OC)
DDR4 - 3866(OC)
DDR4 - 4000(OC)
DDR4 - 4133(OC)
DDR4 - 4200(OC)
DDR4 - 4266(OC)
DDR4 - 4333(OC)
DDR4 - 4400(OC)
DDR4 - 4466(OC)
DDR4 - 4533(OC)
DDR4 - 4533+(OC)
DDR4 - 4600(OC)
DDR4 - 4666
DDR4 - 4733+(OC)
Max. Memory Capacity ┃ 128GB
Audio
Audio ┃ Realtek ALC1200 7.1 HD Audio
Graphics Support
Primary GPU Interface ┃ PCIe 4.0 (x16)
NVIDIA SLI Support ┃ Not Supported
AMD CrossFire Support ┃ 2-Way CrossFire
Integrated Graphics ┃ Requires Processor Graphics or Discrete GPU
On-Board Graphics Connectors:
DisplayPort 1.4
HDMI 2.1
Internal Connectivity
Expansion Slots:
1 x M.2, 22-80, PCIe Gen3
1 x M.2, 22-80, PCIe Gen4x4
1 x PCIe 3.0 x1
2 x PCIe 4.0 x16
SATA Support ┃ SATA3
Internal I/O:
1 x 24-pin (Power)
1 x 4-pin (Power)
4 x 4-pin CHA_FAN connector
1 x 4-pin CPU Fan Connector
1 x 4-pin CPU OPT Fan Connector
1 x 8-pin (Power)
2 x Addressable Digital RGB Header
1 x Front Panel Audio Header
1 x Power LED / Speaker Header
2 x RGB LED connector
1 x TPM (SPI_TPM) header
2 x USB 2.0 Header
2 x USB 3.2 Gen1 Header
External Connectivity
Network Interface Type ┃ Wired 2.5 Gigabit LAN (10/100/1000/2500)
Network Chip/Modules ┃ 1 x Realtek (2.5GbE LAN)
Rear I/O Connectors:
2 x Antenna Ports
1 x Bass Speaker Out
1 x Center/Subwoofer Speaker Out
1 x Clear CMOS Button
1 x DisplayPort 1.4
1 x Front Speaker Out
1 x HDMI
1 x Line In
1 x Mic-In
1 x PS/2 Keyboard/Mouse Combo
1 x Rear Speaker Out
1 x RJ-45 with LED
1 x S/PDIF-Out (Optical)
2 x USB 2.0
4 x USB 3.2 Gen1 Type-A
1 x USB 3.2 Gen2 Type-A
1 x USB 3.2 Gen2 Type-C
Additional Specifications
Water Cooled ┃ No
Cooling ┃ Passive Heatsinks
QPI Speed ┃ N/A
Board Dimensions ┃ 244 x 244 mm