• $423.65
  • Free 30-day Returns
  • Ships from Canada.
    Price alert
    Newegg PC Builder
    Shop it at NeweggBusiness.

    Meet Your Seller

    ASRock B550M STEEL LEGEND AM4 AMD B550 Micro ATX AMD Motherboard

    (327)(39) Write a Review
    • B550 EXTREME4
    • B550 PHANTOM GAMING 4
    • B550 PHANTOM GAMING 4 AC
    • B550 PHANTOM GAMING-ITX/AX
    • B550 PRO4
    • B550 TAICHI
    • B550M-HDV
    • B550M-ITX/AC
    • B550M PRO4
    • B550M STEEL LEGEND
    • B550M PRO SE
    • BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU
    • AMD B550
    • Supports AMD Ryzen 5000 Series / 5000 G-Series / 4000 G-Series / 3000 Series / 3000 G-Series Processors
    • DDR4 4733+(OC) / 4666(OC) / 4600(OC) / 4533(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 (AMD Ryzen series APUs (Cezanne & Renoir))
    • DDR4 4533+(OC) / 4466(OC) / 4400(OC) / 4333(OC) / 4266(OC) / 4200(OC) / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3466(OC) / 3200 / 2933 / 2667 / 2400 / 2133 (AMD Ryzen series CPUs (Vermeer & Matisse))
    • DDR4 3333+(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 (AMD Ryzen series APUs (Picasso))
    🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available
    +
    +
    Overview
    Specs
    Reviews (327)
    B550-PG-Velocita motherboard
    B550M Steel Legend
    • 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
    • AMD CrossFireX
    • 7.1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio
    • 6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
    • 2 USB 3.2 Gen2 (Rear Type A+C), 8 USB 3.2 Gen1 (4 Front, 4 Rear)
    • Dragon 2.5G LAN
    detail of the motherboard left side of the motherboard top side of the motherboard
    B550M Steel Legend motherboard

    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.

    B550M Steel Legend motherboard
    STEEL FOREVER

    Get Endless Performance Possibilities with Steel Style

    AMD RYZEN of the motherboard
    a woman is listening music
    Nahimic Audio

    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.

    a woman is listening music

    The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.

    DrMOS-B550 of the motherboard
    Dr. MOS

    Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs, it intelligently delivers higher current for each phase, thus providing improved thermal result and superior performance.

    Premium 60A Power Choke

    Compared to traditional chokes, ASRock's premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

    10 Power Phase Design of the motherboard
    10 Power Phase Design

    Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.

    HiDensityPowerConnector-B550 of the motherboard
    Hi-Density Power Connector

    Reduces 23% power loss and decreases the connector's temperature by 22 degrees Celsius.
    8+8 12V Power Connectors
    24-pin ATX Power Connector

    2ozCopperPCB-B550 of the motherboard
    2oz Copper PCB

    2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!

    B550M Steel Legend 4 WiFi ax
    RULE YOUR OWN LIGHTING WAY - POLYCHROME RGB

    ASRock motherboards deliver stunning performance and superior aesthetics to rule your own colorful lighting way! ASRock offers a very comprehensive control to perform the built-in RGB LEDs or the connected LED strips, CPU fans, coolers, chassis and any RGB devices smoothly. Devices can be synchronized across the Polychrome RGB Sync-certified accessories as well.

    Polychrome-RGB Phantom Gaming 4 WiFi ax *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.
    B550M Steel Legend motherboard
    Dragon 2.5 Gb/s LAN

    The intelligent 2.5Gb/s LAN platform is built for maximum networking performance for the demanding requirements of home networking, content creators, online gamers and high-quality streaming media. Boost networking performance up to 2.5X the bandwidth compared to the standard gigabit Ethernet, you'll enjoy the faster and uncompromised connectivity experience for gaming, file transfers and backups.

    PhantomGamingLAN-Speed icon
    screenshot of Dragon2.5GLAN-UI

    Automatically detects and accelerates game traffic ahead of other network traffic for smoother, stutter-free in-game performance and the competitive edge.

    B550M Steel Legend of the motherboard
    A SOLID M.2-SOLUTION PERFORMER
    Dual M.2 For SSD, Supports Type 22110 M.2

    Ready for higher capacity and even faster Type 22110 M.2 NVMe SSD to fulfill the need of performance. Hyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.

    M.2 Armors

    Good M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature.

    PCI-E 4.0 of the motherboard
    Reinforced Steel Slot [PCIe 4.0 Version]

    The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include:

    • Extra anchor points
    • Stronger latch
    • Ensure signal stability
    • Make sure heavy graphics cards to be well-installed.
    2XUSB3.2Gen2 Phantom Gaming 4 WiFi ax
    Dual USB 3.2 Gen2 (Type-A + Type-C)

    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.

    chart of USB3.2 Gen2
    M.2 Key For WiFi of the motherboard
    M.2 (KEY E) For WiFi

    Besides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot. *Wi-Fi module is not included.

    Integrated I/O of the motherboard
    Flexible Integrated I/O Shield

    Unlike most so called pre-mounted I/O shield that is only decorated with fancy color schemes. We reserve more tolerance space and allow IO shield is adjustable when installing, thus fitting chassis perfectly without any mechanical issue.

    DualGraphicsOutputs-HDMIDP of the motherboard
    Dual Graphics Outputs

    Complete with two types of most used connectors! Packed with a HDMI + DisplayPort combo, you have more graphics output options now.

    SA icon
    XXL Aluminum Alloy Heatsink

    SA-Heatsink-B550 of the motherboard

    Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.

    Premium 60A Power Choke
    SA-60APowerChoke of the motherboard

    Compared to traditional chokes, ASRock's premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

    Dr. MOS

    SA-DrMOS of the motherboard

    Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Intelligently delivering higher current and driving up to 50A continuous current for each phase, thus providing improved thermal result and superior performance.

    Nichicon 12K Black Caps
    SA-Nichicon12KBlack of the motherboard

    Supreme 12K black capacitors with lifespans of at least 12,000 hours. Compared to other counterparts on high-end motherboards that merely have lifespans of around 10,000 hours, ASRock applied Nichicon 12K Black Caps that offer 20% longer lifespans and provide more stability and reliability.

    I/O Armor
    SA-ComboCaps of the motherboard

    A new designed protective cover for all of the crucial parts near the motherboard's rear I/O, so that they won't easily be damaged by static electricity.

    Matte Black PCB
    SA-MattePCB of the motherboard

    A new mysterious matte black and copper color scheme to match the prestigious components on ASRock's high-end motherboards.

    High Density Glass Fabric PCB
    SA-HDPCB of the motherboard

    High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

    2oz Copper PCB

    SA-8PCB of the motherboard

    Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.

    Gold Audio Jacks
    Gold Audio Jacks

    Everything will wear off in time, but gold looks better! Gold audio jack provides stable sound transmission!

    FullSpike
    Full Spike Protection

    Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard's components from being damaged by these unexpected voltage spikes.

    APPShop
    Live Update & APP Shop

    ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
    • Read full details
    • CONTACT

    Return Policies

    Manufacturer Contact Info

    LOADING...
    LOADING...