ASRock AMD B850 Steel Legend WiFi AM5 DDR5 PCIe 5.0 ATX Motherboard
ASRock AMD B850 Steel Legend WiFi AM5 DDR5 PCIe 5.0 ATX Motherboard
Scan code: LN154837 Manufacturer code: 90-MXBQS-A0UAYZ
£209.99Item overdue since 12 February 2025
Pre order
  • Thumbnail 1 : ASRock AMD B850 Steel Legend WiFi AM5 DDR5 PCIe 5.0 ATX Motherboard
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ASRock AMD B850 Steel Legend WiFi AM5 DDR5 PCIe 5.0 ATX Motherboard

ASRock B850 Steel Legend WiFi, AMD B850, AM5, DDR5, PCIe 5.0, 4x M.2, 2.5G/WiFi 7, USB 3.2 Gen2, AMD EXPO, ATX

Scan code: LN154837 Manufacturer code: 90-MXBQS-A0UAYZ
£209.99
Item overdue since 12 February 2025
Pre order

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ASRock B850 STEEL LEGEND WiFi DDR5 PCIe 5.0 AMD ATX Motherboard

ASRock STEEL LEGEND ATX Motherboard for AMD Ryzen 7000, 8000 & 9000 Series Processors

Engineered for Precision STEEL LEGEND personifies the essence of industrial might, where shimmering steel components come to life on a sprawling assembly line. Built on the AMD B850 chipset with support for Ryzen 7000, 8000 and 9000 series, it surges forward with cutting-edge efficiency. Equipped with DDR5 memory, PCIe 5.0 lanes, and three lightning-fast M.2 slots, this motherboard is crafted for those ready to push boundaries. Picture cables snaking through the space like veins of power, channeling data at unprecedented speeds through USB 3.2 connectivity, 2.5G Ethernet, and WiFi 7. With AMD EXPO fine-tuning memory overclocking, this ATX form factor stands ready to deliver rock-solid stability and relentless performance, thriving in the most demanding gaming environments.

B850AMD Chipset

AM5CPU Socket

DDR5 DIMMMax. 256GB (Dual Channel)

ATXForm Factor

Expertly Assembled VRM

14+2+1 Power Phases for CPU Power Delivery

Dr. Mos & Power PhasingBuilt with a robust 14+2+1 power phase design, this board ensures flawless power delivery to your CPU, setting the stage for seamless overclocking and a performance boost that users crave. The enhanced thermal efficiency keeps temperatures under control, even when pushing your system to its limits. At the heart of this is the Dr.MOS integrated power stage, which streamlines current delivery by optimising each phase for superior thermal management.

14VCORE Phases

2SOC Phases

1VDD_MISC Phases

Durable 8-Pin CPU Connector

Dual 8-Pin PowerFor demanding CPU overclocking, higher currents are essential, and this is where ASRock’s Hi-Density Power connectors come into play. Designed to endure significantly higher currents than traditional 8-pin CPU and 24-pin ATX connectors, they offer improved stability and security. They provide peace of mind to demanding workers and ensuring the system remains cool and controlled, even under intense conditions.

Unlock Memory Overclocking

8-Layer PCB for Clear Memory Signals

8-Layer PCBPower flows through the 8-layer PCB which stabilises signal traces with precision. It reinforces thermal management and maintains signal integrity, providing a solid foundation for high-performance memory modules. With every current, DDR5 is pushed to its limits, driving speed and efficiency with fantastic reliability, no matter what.

8000+ MHz Memory Transfer; AMD EXPO Support

DDR5 XMP & EXPOASRock’s commitment to stability and reliability shines through every layer of its design. By enabling pre-tested profiles, users can push the limits of their system with confidence. For seamless overclocking, ensure that your memory modules are Intel® XMP or AMD EXPO™ compatible.

Pulsing With PCI

x1

PCIe Gen5x4 'Blazing M.2' 2280 Slot

x3

PCIe Gen4x4 'Hyper M.2' 2280 Slot

Express ExcellenceASRock's Blazing M.2 technology ignites your system with electrifying speed, harnessing the raw power of PCI Express 5.0 to deliver unparalleled data transfer rates. This lightning-fast performance obliterates loading times, ensuring every task is executed in an instant. Enhanced further by cutting-edge Gen4 capabilities, the synergy between speed and power creates a surge of performance that unlocks the full potential of high-capacity SSDs.


Durable M.2 ArmourCut from premium aluminium, the M.2 armour shields your SSD from accidental damage and thermal throttling, making it ideal for PCIe 5.0 speeds.

Anti-Drop ScrewsTired of losing screws inside your chassis? Secure the M.2 armour using ASRock's anti-drop mechanism, preventing accidental mishap during assembly.

Smooth Heat DissipationThe M.2 bottom heatsink efficiently dissipates heat from the SSD through the motherboard PCB, optimising performance while ensuring system stability.

GPU Easy ReleaseRemoving a GPU can be a nerve-racking experience, which is why ASRock have developed a user-friendly latch system so you can gently lift your card out.

Toolless M.2ASRock introduces an innovative M.2 heatsink quick release mechanism, simplifying the installation process and allowing for effortless upgrades without tools.

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Intelligent Cooling Solutions

Aluminium Heatsink

Aluminium Heatsink The chiseled aluminium heatsink efficiently pulls heat from key components, its dense, cold metal construction ensuring reliable cooling under intense gaming or heavy productivity tasks.

PWM/DC Fan Support

PWM/DC Fan Support ASRock fan headers automatically detect whether fans are running in DC or PWM mode, allowing users to fine-tune the fan curve and achieve quieter operation.

Thermistor Header

Thermistor Header The thermistor cable and thermistor header provide an additional source for temperature monitoring, offering customised thermal management solutions based on workload. Thermal management settings can be easily configured via Fan-Tastic Tuning or UEFI.

Fan Tastic Tuning

Fan-Tastic TuningThe Fan-Tastic Tuning function enables users to auto-detect the minimum duty of each fan with a single click. Users can also easily adjust the fan curve via the UI, meeting the system's cooling performance and noise requirements.

Nahimic Audio

Nahimic Audio

Audio Matters Nahimic Audio delivers an immersive listening experience that is vibrant and rich in detail, regardless of whether you're using headphones, a headset, external or internal speakers.

Clear Communication Powerful algorithms deliver clear, noise-free conversations with consistent vocal levels, enhancing sound quality and reducing interference for better clarity and less fatigue.

Sound Tracker The Sound Tracker visually indicates the direction of prominent sounds, displaying them in a 360° radar for complete immersion during gameplay.

Accelerating Performance

Whirlwind Wifi 7Wi-Fi 7 takes wireless connectivity to the next level by introducing the 320 MHz channel width and Multi-Link Operation (MLO), enabling faster and more stable connections. It leverages advanced features like 4K-QAM and Time-Sensitive Networking (TSN) to enhance performance for demanding tasks.


Dragon 2.5G LAN The 2.5Gb/s LAN platform is designed to deliver top-tier networking performance, perfect for home networks, content creators, online gamers, and high-quality streaming. Offering up to 2.5 times the bandwidth of standard gigabit Ethernet, it ensures faster, reliable connectivity for gaming, file transfers, and backups without compromise.

20Gbs USB 3.2 Gen2x2 This board features 20Gb/s USB 3.2 Gen2x2 connectors, offering lightning-fast data transfers ideal for gaming peripherals, 4K video editing rigs, and high-speed external storage solutions.

Fully Equipped I/O

Performance Features

All the essentials The ASRock Pro-A comes with HDMI, DisplayPort, a BIOS Flashback button, 2.5Gbps LAN, two addressable LED headers, RGB support, and a front USB 3.2 Gen1 Type-C header, giving you plenty of connectivity and customisation options in a compact package.

Connectivity Features

INTEGRATED I/O Shield The Steel Legend can click into any case in style thanks to its pre-mounted I/O shield. Loaded with HDMI, DisplayPort, a BIOS Flashback button, 2.5Gbps LAN, along with various USB and audio ports, there's plenty of room to connect what you need.

Cooling Features

Keeping it cool Considering cooling, it also comes with two CPU fan connectors, one AIO pump fan connector, and three chassis fan connectors, providing versatile cooling solutions for effective thermal control in your system.

Specifications
Core Specifications
Edition B850 Steel Legend WiFi
Form Factor ATX
CPU Socket AM5
Chipset AMD B850
RAM Memory Support
Memory Type DDR5
Memory Channel Dual (2)
Memory Type (ECC) ECC/Non-ECC
Memory Type (R/U) UDIMM (Unbuffered)
Memory Speed (Mhz) DDR5 - 8000(OC)
Max. Memory Capacity 256GB
Audio
Audio 7.1 Channel HD Audio
Graphics Support
Primary GPU Interface PCIe 5.0 (x16)
NVIDIA SLI Support N/A
AMD CrossFire Support N/A
Integrated Graphics Discrete GPU Required for Graphics Output
On-Board Graphics Connectors HDMI 2.1
Internal Connectivity
Expansion Slots
  • 1 x M.2 Key E (Supports Wi-Fi modules)
  • 3 x M.2, 22-60/80, PCIe Gen4x4
  • 1 x M.2, 22-80, PCIe Gen5x4
  • 1 x PCIe 4.0 x16 (x4 Bandwidth)
  • 1 x PCIe 5.0 x16
  • 2 x SATA 6GB/s
SATA Support N/A
RAID Support via  
Storage Mode Support
  • RAID 0
  • RAID 1
  • RAID 10
Internal I/O
  • 1 x 24-pin (Power)
  • 1 x 4-pin AIO Pump Connector
  • 3 x 4-pin CHA_FAN connector
  • 2 x 8-pin (Power)
  • 3 x Addressable Digital RGB Header
  • 2 x CPU Fan Connector
  • 1 x Front Panel Audio Header
  • 1 x Power LED / Speaker Header
  • 1 x RGB Header
  • 1 x TPM (SPI_TPM) header
  • 2 x USB 2.0 Header
  • 2 x USB 3.2 Gen1 Header
  • 1 x USB 3.2 Gen2x2
External Connectivity
Network Interface Type
  • 802.11be Wi-Fi 7 LAN
  • Wired 2.5 Gigabit LAN
Network Chip/Modules
  • 1 x 802.11ax WiFi 6E + BT5.2
  • 1 x 802.11be WiFi 7 + BT5.4
  • 1 x Realtek RTL8125BG
Rear I/O Connectors
  • 1 x BIOS Flashback Button
  • 1 x HDMI 2.1
  • 1 x Line Out
  • 1 x Mic-In
  • 1 x RJ-45
  • 1 x S/PDIF-Out (Optical)
  • 4 x USB 2.0
  • 3 x USB 3.2 Gen1 Type-A
  • 2 x USB 3.2 Gen2 Type-A
  • 2 x USB 3.2 Gen2 Type-C
  • 2 x WiFi Antenna connectors
Additional Specifications
Water Cooled No
Cooling Passive Heatsinks
QPI Speed N/A
Board Dimensions 305 x 244 mm
Note  
Additional Information
Scan Code LN154837
Model Number 90-MXBQS-A0UAYZ
GTIN 4711581490062
Warranty

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Warranty information has not yet been updated for this product. For further information please call 01204 474747.

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Buying Guide
Need help choosing the right board? Read our AMD Motherboard Buying Guide
ASRock AMD B850 Steel Legend WiFi AM5 DDR5 PCIe 5.0 ATX Motherboard
ASRock AMD B850 Steel Legend WiFi AM5 DDR5 PCIe 5.0 ATX Motherboard