ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP
ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP
ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP
ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP
ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP

ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP

$245.00
Tax included.
ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP

ASRock AMD B550; 4 DDR4; PCIe 4.0 x16 PCIe 3.0 x16 PCIe 3.0 x1 M.2 WiFi Key E; 6 SATA3 Hyper M.2 (PCIe) M.2 (PCIe); 10 USB 3.2; Graphics: HDMI DP

$245.00
Product description

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



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.



STEEL FOREVER

Get Endless Performance Possibilities with Steel Style


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.

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.


Dr. MOS10 Power Phase Design

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.


Hi-Density Power Connector

Reduces 23% power loss and decreases the connector’s temperature by 22 degrees Celsius.

  • 8+4 12V Power Connectors
  • 24-pin ATX Power Connector


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!


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.


*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.


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.

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


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.


AMD SMART ACCESS MEMORY

Conventional PC systems processor can only access a fraction of graphics memory and limits system performance. With AMD Smart Access Memory, the data channel gets expanded to harness the full potential of GPU memory, removes the bottleneck and increase performance.


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.


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.

  • USB 3.2 Gen2 doubles the data transfer rate
  • USB 3.2 Gen2 Type-C doubles the charge speed!


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.


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.


Dual Graphics Outputs

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


AMD StoreMI Technology

A powerful tool that combines the speed of your SSD with the capacity of your hard disk into a single, fast, easy-to-manage drive, AMD StoreMI technology “combines” these two types of storage into a single drive and automatically moves the data you access the most to the SSD, so you get the best of both worlds.


XXL Aluminum Alloy Heatsink

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

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

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

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

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

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

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

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


Shipping & Return

Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.

We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.

Tech Specs

GroupName Name Value
SpecificationsAudio7.1 CH HD Audio with Content Protection (Realtek ALC1200 Audio Codec), Premium Blu-ray Audio support, Supports Surge Protection, PCB Isolate Shielding, Individual PCB Layers for R/L Audio Channel, Gold Audio Jacks, Nahimic Audio
SpecificationsChipsetAMD B550
SpecificationsForm FactorMicro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
SpecificationsI/O Connectors2 x Antenna Mounting Points, 1 x PS/2 Mouse/Keyboard Port, 1 x HDMI Port, 1 x DisplayPort 1.4, 1 x Optical SPDIF Out Port, 1 x USB 3.2 Gen2 Type,A Port (10 Gb/s) (Supports ESD Protection), 1 x USB 3.2 Gen2 Type,C Port (10 Gb/s) (Supports ESD Protection), 4 x USB 3.2 Gen1 Ports (ASMedia ASM1074 hub) (Supports ESD Protection), 2 x USB 2.0 Ports (Supports ESD Protection), 1 x RJ,45 LAN Port with LED (ACT/LINK LED and SPEED LED), 1 x Clear CMOS Button, HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)
SpecificationsIntegrated CPU GraphicsIntegrated AMD Radeon Vega Series Graphics in Ryzen Series APU*, DirectX 12, Pixel Shader 5.0, Shared memory default 2GB. Max Shared memory supports up to 16GB.**, Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers, Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz, Supports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120Hz, Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required), Supports HDR (High Dynamic Range) with HDMI 2.1, Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports, Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports, Supports Microsoft® PlayReady; *Actual support may vary by CPU. **The Max shared memory 16GB requires 32GB system memory installed.
SpecificationsLAN- 2.5 Gigabit LAN 10/100/1000/2500 Mb/s - Dragon RTL8125BG - Supports Dragon 2.5G LAN Software - Smart Auto Adjust Bandwidth Control - Visual User Friendly UI - Visual Network Usage Statistics - Optimized Default Setting for Game, Browser, and Streaming Modes - User Customized Priority Control - Supports Wake-On-LAN - Supports Lightning/ESD Protection - Supports Energy Efficient Ethernet 802.3az - Supports PXE
SpecificationsMemory/Type/Bus/Max.- Dual Channel DDR4 Memory Technology - 4 x DDR4 DIMM Slots - AMD Ryzen series CPUs (Vermeer) support 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 ECC & non-ECC, un-buffered memory* - AMD Ryzen series CPUs (Matisse) support 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 ECC & non-ECC, un-buffered memory* - AMD Ryzen series APUs (Cezanne) support 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 ECC & non-ECC, un-buffered memory* - AMD Ryzen series APUs (Renoir) support 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 ECC & non-ECC, un-buffered memory* - AMD Ryzen series APUs (Picasso) support DDR4 3333+(OC) / 3200(OC) / 2933 / 2667 / 2400 / 2133 non-ECC, un-buffered memory* - Max. capacity of system memory: 128GB** - Supports Extreme Memory Profile (XMP) memory modules - 15µ Gold Contact in DIMM Slots
SpecificationsPCI SlotsAMD Ryzen series CPUs (Matisse), 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode)*AMD Ryzen series APUs, 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode)*, 1 x PCI Express 3.0 x1 Slot, Supports AMD Quad CrossFireX and CrossFireX, 15µ Gold Contact in VGA PCIe Slot (PCIE1), 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module. *Supports NVMe SSD as boot disks
SpecificationsProcessor SupportSupports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors*, Digi Power design, 10 Power Phase design. *Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G.
SpecificationsRaidSupport for RAID 0, RAID 1, and RAID 10
SpecificationsRAM Type/Bus/Max.Dual Channel DDR4 Memory Technology, 4 x DDR4 DIMM Slots, AMD Ryzen series CPUs (Matisse) support 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 ECC & non,ECC, un,buffered memory*, AMD Ryzen series APUs support 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 ECC & non,ECC, un,buffered memory*, Max. capacity of system memory: 128GB**, Supports Extreme Memory Profile (XMP) memory modules, 15µ Gold Contact in DIMM Slots; *For Ryzen Series CPUs (Picasso), ECC is only supported with PRO CPUs. **Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32,bit OS. For Windows® 64,bit OS with 64,bit CPU, there is no such limitation.
SpecificationsSocketAM4
SpecificationsStorage Interface6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*, 1 x Hyper M.2 Socket (M2_1), supports M Key type 2280 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Matisse) or Gen3x4 (32 Gb/s)**, 1 x M.2 Socket (M2_2), supports M Key type 2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)**; *M2_2 and SATA3_5_6 share lanes. If either one of them is in use, the other one will be disabled. **Supports NVMe SSD as boot disks. Supports ASRock U.2 Kit
SpecificationsWarranty3 Years
SpecificationsWeight