ASRock B850 Steel Legend WiFi Motherboard - B850 AM5 Max256GB DDR5 ATX Retail

Marketing Information

• B850 Steel Legend WiFi
• 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.
• 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:
• ex20kiconHigher Capacitance:
• Greater charge storage for better support under high loads.
• ex20kiconLower Ripple:
• Reduced power output fluctuations, improving quality.
• ex20kiconMore Stable Output Current:
• Stable power supply, minimizing voltage impacts.
• ex20kiconBetter Performance and System Stability:
• Increased reliability and consistent performance.
• 14+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.

Detail Specifications

• Unique Feature
• Superb Productivity
  • PCIe Gen5 (Graphics, M.2)
  • Dual Channel DDR5
• Rock-Solid Durability
  • 14+2+1 Power Phase, 80A Dr.MOS for VCore+SOC+MISC with Enlarged Heatsink Armor
  • Flexible Integrated I/O Shield
  • 20K Long-lasting Black Caps (high quality and conductive polymer capacitors)
• Ultrafast Connectivity
• - 2.5G LAN, 802.11be Wi-Fi 7 Module
• - ASRock Lightning Gaming Ports
• EZ Update
• - BIOS Flashback Button
• - ASRock Auto Driver Installer
• EZ Troubleshooter
• - ASRock Post Status Checker
• CPU
• - Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors
• The availability of expansion slots may vary by CPU. Please refer to PCIe/M.2 Bandwidth Table for details.
• Chipset
• - AMD B850
• Memory
• - Dual Channel DDR5 Memory Technology
• - 4 x DDR5 DIMM Slots
• - Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC)
• - Max. capacity of system memory: 256GB
• - Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) memory modules
• BIOS
• - 256Mb AMI UEFI Legal BIOS with GUI support
• Graphics
• Integrated AMD RDNA graphics (Actual support may vary by CPU)
• - 1 x HD- 2.1 TMDS/FRL 8G Compatible, supports HDR, HDCP 2.3 and max. resolution up to 4K 120Hz
• Audio
• - 7.1 CH HD Audio with Content Protection (Realtek ALC4082 Audio Codec)
• - Individual PCB Layers for R/L Audio Channel
• - Direct Drive Technology on Front headphone port (Supports up to 600 Ohm headsets)
• - Nahimic Audio
• LAN
• - 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
• Wireless LAN
• - 802.11be 2x2 Wi-Fi 7 Module
• - Supports IEEE 802.11a/b/g/n/ac/ax/axe/be
• - Supports 2.4GHz/5GHz/6GHz frequency band
• - Supports 160MHz channel bandwidth with 6GHz frequency band
• - 1 antenna to support 2 (Transmit) x 2 (Receive) diversity technology
• - Supports Bluetooth 5.4
• - Supports MU-MIMO
• The Wi-Fi 7 module is supported by Microsoft Windows 11 only. There is no driver available for Windows 10. The availability of the 6GHz band will depend on the different regulation status of each country and region. It will be activated (for supported countries) through Windows Update and software updates once available.
• Slots
• CPU:
• - 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode
• Chipset:
• - 1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode
• - 1 x Vertical M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module
• - 15mu Gold Contact in VGA PCIe Slot (PCIE1)
• PCIE1 will run at Gen5x16 with 9000 and 7000 series processors, Gen4x8 with 8000 (Phoenix 1) series processors and Gen4x4 with 8000 (Phoenix 2) series processors.
• If M2_4 is occupied, PCIE2 will be disabled.
• Supports NVMe SSD as boot disks
• Storage
• CPU:
• - 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode
• - 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode
• Chipset:
• - 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2230/2260/2280 PCIe Gen4x4 (64 Gb/s) mode
• - 1 x Hyper M.2 Socket (M2_4, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode
• ASMedia ASM1061:
• - 4 x SATA3 6.0 Gb/s Connectors
• Supports NVMe SSD as boot disks
• M2_1 is the first priority for M.2 installation.
• M2_1 will run at Gen5x4 with 9000 and 7000 series processors and Gen4x4 with 8000 (Phoenix 1 and Phoenix 2) series processors.
• M2_2 will run at Gen4x4 with 9000 and 7000 series processors, Gen4x4 with 8000 (Phoenix 1) series processors and Gen4x2 with 8000 (Phoenix 2) series processors.
• If M2_4 is occupied, PCIE2 will be disabled.
• RAID
• - Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
• USB
• CPU:
• - 2 x USB 3.2 Gen2 Type-C (Rear)
• - 1 x USB 3.2 Gen2 Type-A (Rear (USB32_3))
• - 1 x USB 3.2 Gen1 Type-A (Rear (USB32_1))
• Chipset:
• - 1 x USB 3.2 Gen2x2 Type-C (Front)
• - 1 x USB 3.2 Gen2 Type-A (Rear (USB32_4))
• - 6 x USB 3.2 Gen1 Type-A (2 Rear (USB32_2 and USB32_5), 4 Front)
• - 8 x USB 2.0 (4 Rear, 4 Front)
• All USB ports support ESD Protection
• Connector
• - 1 x SPI TPM Header
• - 1 x Thermistor Cable Header
• - 1 x Power LED and Speaker Header
• - 1 x RGB LED Header
• - 3 x Addressable LED Headers
• - 2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)
• - 3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)
• - 1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)
• - 1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
• - 2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
• - 1 x Front Panel Audio Connector
• - 2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
• - 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
• - 1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s)
• Supports in total up to 12V/3A, 36W LED Strip
• Support in total up to 5V/3A, 15W LED Strip
• CPU_FAN1 supports the fan power up to 1A (12W).
• CPU_FAN2, CHA_FAN1-3 and AIO_PUMP support the fan power up to 3A (36W).
• CPU_FAN2, CHA_FAN1-3 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.
• Rear Panel I/O
• - 2 x Antenna Ports
• - 1 x HD- Port
• - 1 x Optical SPDIF Out Port
• - 2 x USB 3.2 Gen2 Type-C Ports (10 Gb/s)
• - 3 x USB 3.2 Gen1 Type-A Ports
• - 2 x USB 3.2 Gen2 Type-A Ports (10 Gb/s)
• - 4 x USB 2.0 Ports
• - 1 x RJ-45 LAN Port
• - 1 x BIOS Flashback Button
• - 1 x Line Out Jack (Gold Audio Jack)
• - 1 x Microphone Input Jack (Gold Audio Jack)
• USB32_12 are Lightning Gaming Ports.
• USB32_34 supports Ultra USB Power.
• Software and UEFI
• Software
• - ASRock Motherboard Utility (A-Tuning)
• - ASRock Dragon 2.5G LAN Software
• - ASRock Polychrome SYNC
• UEFI
• - ASRock EZ Mode
• - ASRock Full HD UEFI
• - ASRock Auto Driver Installer
• - ASRock Instant Flash
• These utilities can be downloaded from ASRock Live Update and APP Shop.
• Accessories
• - 2 x SATA Data Cables
• - 2 x ASRock WiFi 2.4/5/6 GHz Antennas
• - 1 x Thermistor Cable
• Form Factor
• - ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm
• - 8 Layer PCB
• OS
• - Microsoft Windows 10 64-bit / 11 64-bit
• Certifications
• - FCC, CE
• - ErP/EuP ready (ErP/EuP ready power supply is required)

Warranty Information

• MB Standard Warranty
• end users will have a warranty period of 3 years (36 months) and SI customers one year that covers damage due to regular usage but not physical damage caused to the motherboard. The warranty period will begin on the date of purchase the end user made from an authorized retaile.
• The warranty period will begin on the date of purchase the end user made from an authorized retailer if an invoice is provided as a proof of purchase. If the end user is unable to provide the invoice, then the warranty period will begin based off that product s manufactured date.
• The Warranty Period may differ regionally. The 3-Year limited local warranty does not apply to the Mining usage.

Shipping Notes:

All our products are normally shipped within 1-2 business days from any of our warehouse locations below:

• Monrovia, CA 91016 (Most usual)
• Fremont, CA 94538
• Richardson, TX 75018
• Duluth, GA 30096
• Itasca, IL, 60143
• Edison, NJ 08837

Shipping to Alaska, Guam, Puerto Rico, and all International orders may take an additional 2 to 3 days to process documentation.

California Prop 65 Warning. This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. 

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