Asrock B850M Steel Legend WiFi AMD B850 Socket AM5 micro ATX

Article-No.:
262375
Manufacturer-No.:
90-MXBS2-A0UAYZ
EAN/GTIN:
4711581490499
WEEE Nummer
DE83654239
Technical specifications

General

Packaged Quantity
1

Processor

Installed Qty
0
Max Supported Qty
1

Mainboard

Form Factor
Micro ATX
Compatible Processors
Ryzen
Chipset Type
AMD B850
Supported RAM Technology
DDR5 SDRAM
Supported RAM Integrity Check
Non-ECC, On-die ECC
Supported RAM Speed
4000 MHz (O.C.)
Processor Socket
Socket AM5
Power Connectors
4-pin ATX12V connector, 24-pin main power connector, 8-pin ATX12V connector
Supported RAM (Registered or Buffered)
Unbuffered
RAM Slots
4 DIMM slots

Interfaces

Internal Interfaces
1 x USB-C 3.2 Gen 1 - header, 1 x audio - header, 4 x USB 2.0 - header, 2 x USB 3.2 Gen 1 - header, 1 x SPI - header

RAM

Features
AMD EXPO technology, Dual channel memory architecture
Max Supported Size
256 GB

Video Output

Type
Graphics adapter (CPU required)

Audio Output

Type
Sound card
Compliant Standards
High Definition Audio
Audio Codec
Realtek ALC1220
Audio
High Definition Audio (8-channel)

Networking

Data Link Protocol
Ethernet, Fast Ethernet, Gigabit Ethernet, IEEE 802.11ax (Wi-Fi 6), Bluetooth 5.4, IEEE 802.11be (Wi-Fi 7), IEEE 802.11n, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11a, IEEE 802.11g, 2.5 Gigabit Ethernet
Network Controller
Dragon RTL8125BG
Network
2.5 Gigabit Ethernet, 802.11a/b/g/n/ac/ax/be (Wi-Fi 7), Bluetooth 5.4

Expansion Slots

Expansion Slots
1 x CPU, 1 x PCIe 4.0 x4, 1 x M.2 socket (2230 M.2 Key E slot), 1 x M.2 socket (2280 M.2 Key M slot), 1 x PCIe 5.0 x16, 2 x M.2 socket (2260/2280 M.2 Key M slot), 4 x DIMM 288-pin

Interfaces

Storage Interfaces
PCIe 4.0 -connectors: 2 x M.2 - RAID 0 / RAID 1 / RAID 10, PCIe 5.0 -connectors: 1 x M.2 - RAID 0 / RAID 1 / RAID 10, SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10
Storage
Serial ATA-600 (RAID), M.2 socket
USB / FireWire
USB 3.2 Gen 1, USB 3.2 Gen 2, USB-C 3.2 Gen2
Storage Ports
4 x SATA-600 (RAID), 3 x M.2
USB / FireWire Ports Configuration (Active)
1 x USB-C 3.2 Gen 2 + 1 x USB 3.2 Gen 2 + 2 x USB 3.2 Gen 1 + 4 x USB 2.0
USB / FireWire Ports Configuration (Headers)
1 x USB-C 3.2 Gen 1 + 4 x USB 3.2 Gen 1 + 4 x USB 2.0

Software

Software Included
ASRock Polychrome SYNC, ASRock Dragon 2.5G LAN Software, ASRock A-Tuning

Dimensions & Weight

Width
24,4 cm
Depth
24,4 cm
Description
Performance
Optimized VRM Design
20K Capacitor
Exclusive 20K Cap with 1000uF Capacitance

The upgraded 20K Black capacitor not only extends the lifespan to 20,000 hours but also increases the capacitance value from 560uF to 1000uF, bringing several benefits:
- Higher Capacitance: Greater charge storage for better support under high loads.
- Lower Ripple: Reduced power output fluctuations, improving quality.
- More Stable Output Current: Stable power supply, minimizing voltage impacts.
- Better Performance & System Stability: Increased reliability and consistent performance.

VRM Design
12+2+1 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.

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.

Power Connector
Hi-Density Power Connector

CPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors, providing a more stable system and reducing the risk of fire during heavy overclocking.

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.

DDR5 XMP & EXPO Support
Derived from the “built for stable and reliable” designing concept, ASRock does not compromise on any details. This motherboard is built with high quality materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable, satisfying and absolutely no sweat at all.

High Speed M.2 Solution
PCIe Gen5 Blazing M.2

The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation, with a breathtaking 128Gb/s transfer speed, it is ready to unleash the full potential of future ultrafast SSDs.

Hyper M.2 Gen4 x4
Supports PCI Express 4.0 M.2 SSDs, it is capable of perform twice the speed compared to previous 3rd generation, giving a lightning fast data transferring experience.

DIY Friendly Design
Graphics Card Lite Release

Equipped with an enlarged latch for easy pressing, simplifying both the installation and removal of graphics cards.

M.2 Bottom Heatsink
The M.2 bottom heatsink is able to dissipate heat of the M.2 SSD efficiently through the motherboard PCB, maximize performance while maintaining system stability.

Cooling
Intelligent Cooling Design
Aluminum Heatsink

The first thing that catches the eye is the optimized Aluminum Heatsink Design. Heatsinks are crucial for efficient heat dissipation, especially during heavy workloads like gaming or productivity tasks. Motherboard that built with heatsinks can effectively manage thermal performance, hence ensure system stability and durability effortlessly.

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

Fan-Tastic Tuning
ASRock A-Tuning 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 visualized UI interface, meeting their system's cooling performance and noise reduction requirements.

Connectivity
Wi-Fi 7
Enhanced VR Experience

Wi-Fi 7 offers higher data throughput, lower latency, and Multi-link Operation. These features ensure a smooth and real-time interactive experience, making the VR/AR experience more immersive and connected.

Wi-Fi 7 802.11be
Latest WiFi 7 technology delivers extreme wireless internet speeds and low latency, with higher throughput and Multi-RU as well as puncturing technology. The new WiFi 7(802.11be) technology is able to accelerate cloud-based gaming, 8K video streaming, and video conferencing.

Multi-link Operation(MLO)
Multi-link Operation (MLO) enables the simultaneous use of multiple bands and channels, boosting speed and throughput while reducing latency for a smoother, faster internet experience.

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.

More than USB Transfer Speed
Aimed for die hard gamers and enthusiasts! Lightning Gaming Ports are sourced from two different controller interfaces that assist gamers in connecting the high speed mice/keyboard with the lower jitter and latency!

Nahimic Audio
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.

Enhance Communication Quality
The Powerful algorithms to ensure the best noise-free conversation, giving a constant vocal level no matter the distance from your mic. The Nahimic audio engine dynamically clear the sound and remove interference noise and lower the voice variation. Result is a better comprehension and less fatigue.
- Static Noise Suppression
- Echo Cancellation
- Lateral Sound Cancellation
- Voice Stabilizer

Ultimate Gaming Experience
- Sound Tracker
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.

- Works on any devices!
Enjoy the vibrant and high-quality Surround Sound on all your favorite audio devices. Nahimic is compatible with all of your favorite audio tools and ensures the best sound with any of them. Nahimic measure and improve to optimize our technology and offer you the best experience.

Stylish Design
POLYCHROME RGB

This motherboard features onboard RGB headers and addressable RGB headers that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.

SignalRGB
SignalRGB unifies your RGB devices, offering seamless customization, game-reactive effects, macro automation, and system monitoring. The official partnership empowers ASRock motherboards with advanced lighting control, enhances compatibility with a diverse range of RGB devices, and provides greater customization flexibility.

DIY Friendly
Customized Thermal Management

The thermistor cable and thermistor header provide an additional source for temperature monitoring, offering customized thermal management solutions.

EZ Setting
Auto Driver Installer

No need to worry about lack of disk drive! Asrock preinstall LAN driver to ensure that you are able to install all drivers needed in an easier way than using SCD.

BIOS Flashback
Get the most convenient BIOS flashing with just a simple click. Users can easily achieve the latest BIOS support with a USB and a power supply. No CPU, RAM or other components are required.

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.
  • Robust networking capabilities
    Equipped with 2.5 Gigabit Ethernet and Wi-Fi 7 support, this motherboard delivers fast and reliable Internet connections, ensuring smooth gaming and streaming experiences.
  • Advanced audio technology
    The high definition audio codec Realtek ALC1220 provides rich, immersive sound with 8-channel support, ideal for both gaming and media playback.
  • Flexible storage options
    With four SATA-600 and three M.2 ports, this motherboard allows for various storage configurations, ensuring ample space for files and applications.
  • Efficient power design
    Features a 12+2+1 phase power design with 20K black capacitors, enhancing stability and performance for high-demand tasks.
  • Durable construction
    Constructed with a 6 Layer PCB and 2 oz Copper PCB, this motherboard ensures longevity and reliable performance, even under heavy workloads.
Product content

Product content

  • ASRock B850M STEEL LEGEND WIFI
  • 2 x Serial ATA cable
  • 2 x M.2 screws, IO shield, standoff for M.2 socket, ASRock WiFi 2.4/5/6 GHz antenna
  • Software
Information on Product Safety

Information on Product Safety

Manufacturer information

Company Name

ASRock Inc

Address

Bijsterhuizen 1111

6546 AR Nijmegen NL

Email

sales@asrock.nl

EU Responsible Person

Name

ASRock Europe B.V.

Address

Bijsterhuizen 1111

6546 AR Nijmegen NL

Email

sales@asrock.nl

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