ASRock B850M Steel Legend WiFi Micro-ATX Intel B850 LGA1851 DDR5 Wi-Fi 7 – B850M STEEL LEGEND WIFI
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- Supports AMD Ryzen 9000, 8000, 7000 series processors with AM5 socket
- Dual-channel DDR5 memory up to 8000+ MHz (OC), max 256GB for superior speed
- PCIe 5.0 x16 and Blazing M.2 Gen5x4 for next-gen graphics and storage
- Wi-Fi 7 (802.11be) and 2.5G LAN for ultrafast, low-latency connectivity
- 12+2+1 power phase with Dr.MOS and 20K black caps for rock-solid durability
- Realtek ALC1220 audio with Nahimic and Polychrome SYNC for immersive sound and RGB
Description
Build with Confidence Using the ASRock B850M Steel Legend WiFi Micro ATX Motherboard
Embodying the Steel Legend philosophy of rock-solid durability and striking aesthetics, the ASRock B850M Steel Legend WiFi Micro ATX motherboard is designed for AMD Ryzen 9000, 8000, and 7000 series processors. Featuring a 12+2+1 power phase design with Dr.MOS and 20K long-lasting black capacitors, this board ensures stable power delivery and exceptional longevity, enhanced by enlarged heatsink armor for optimal thermal performance. With dual-channel DDR5 memory support up to 8000+ MHz (OC) and a maximum capacity of 256GB, it delivers blazing-fast performance for gaming, content creation, and multitasking. The PCIe 5.0 x16 slot and Blazing M.2 Gen5x4 socket provide future-proof connectivity for next-gen GPUs and NVMe SSDs, making it ideal for enthusiasts seeking cutting-edge technology in a compact form factor.
[](https://www.asrock.com/MB/AMD/B850M%2520Steel%2520Legend%2520WiFi/index.us.asp)
What sets the B850M Steel Legend WiFi apart is its blend of premium features and user-friendly design. Ultrafast connectivity is guaranteed with Wi-Fi 7 (802.11be) and 2.5G LAN, offering low-latency performance for gaming and streaming. The Realtek ALC1220 7.1 CH HD audio with Nahimic Audio delivers immersive sound, while ASRock Polychrome SYNC enables vibrant RGB customization. Tools like BIOS Flashback and ASRock Auto Driver Installer simplify setup, and the M.2 bottom heatsink ensures efficient heat dissipation for high-speed storage. Built with a 2oz copper PCB and a flexible integrated I/O shield, this motherboard combines durability, style, and performance, making it the ultimate choice for mainstream enthusiasts and daily users building a reliable, high-performance PC.
[](https://www.asrock.com/MB/AMD/B850M%2520Steel%2520Legend%2520WiFi/index.us.asp)
Specification | Details |
---|---|
CPU | Supports AMD Socket AM5 Ryzen 9000, 8000, and 7000 Series Processors The availability of expansion slots may vary by CPU. 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: 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 HDMI 2.1 TMDS/FRL 8G Compatible, supports HDR, HDCP 2.3, max. resolution up to 4K 120Hz 1 x DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3, max. resolution up to 4K 120Hz |
Audio | 7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec) Impedance Sensing on Rear Out port Individual PCB Layers for R/L Audio Channel 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 Wi-Fi 7 module supported by Windows 11 only. No driver for Windows 10. 6GHz band availability depends on country regulations. |
Slots | CPU: 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode 1 x PCIe 4.0 x4 Slot (PCIE2), supports x4 mode Chipset: 1 x Vertical M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module 15μ Gold Contact in VGA PCIe Slot (PCIE1) PCIE1 runs at Gen5x16 with 9000 and 7000 series, Gen4x8 with 8000 (Phoenix 1), Gen4x4 with 8000 (Phoenix 2) processors 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 Chipset: 1 x M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen4x2 (32 Gb/s) mode 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode 4 x SATA3 6.0 Gb/s Connectors Supports NVMe SSD as boot disks M2_1 is first priority for M.2 installation M2_1 runs at Gen5x4 with 9000 and 7000 series, Gen4x4 with 8000 (Phoenix 1), Gen4x2 with 8000 (Phoenix 2) processors |
RAID | Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices Supports RAID 0, RAID 1, and RAID 10 for M.2 NVMe storage devices RAID 10 requires additional M.2 NVMe expansion cards |
USB | CPU: 1 x USB 3.2 Gen2 Type-C (Rear) 1 x USB 3.2 Gen2 Type-A (Rear) 1 x USB 3.2 Gen1 Type-A (Rear, USB32_2) Chipset: 1 x USB 3.2 Gen1 Type-C (Front) 5 x USB 3.2 Gen1 Type-A (1 Rear, USB32_3, 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 24 pin ATX Power Connector (Hi-Density Power Connector) 1 x 8 pin 12V Power Connector (Hi-Density Power Connector) 1 x 4 pin 12V Power Connector (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 Gen1 Header |
Rear Panel I/O | 2 x Antenna Ports 1 x HDMI Port 1 x DisplayPort 1.4 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) 2 x USB 3.2 Gen1 Ports 4 x USB 2.0 Ports 1 x RJ-45 LAN Port 1 x BIOS Flashback Button HD Audio Jacks: Line in / Front Speaker / Microphone |
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 |
Accessories | 2 x SATA Data Cables 2 x ASRock WiFi 2.4/5/6 GHz Antennas 1 x Thermistor Cable 2 x Screws for M.2 Sockets 1 x Standoff for M.2 Socket |
Form Factor | Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm 2oz Copper PCB |
OS | Microsoft Windows 10 64-bit / 11 64-bit |
Certifications | FCC, CE ErP/EuP ready (ErP/EuP ready power supply is required) |
Unique Features | Superb Productivity: PCIe Gen5 (Graphics, M.2), Dual Channel DDR5 Rock-Solid Durability: 12+2+1 Power Phase, Dr.MOS for VCore+SOC+MISC with Enlarged Heatsink Armor, Flexible Integrated I/O Shield, 20K Long-lasting Black Caps Ultrafast Connectivity: 2.5G LAN, 802.11be Wi-Fi 7 Module EZ Update: BIOS Flashback Button, ASRock Auto Driver Installer EZ Troubleshooter: ASRock Post Status Checker |
Availability | This model may not be sold worldwide. Please contact your local dealer for the availability of this model in your region. |
Additional information
Weight | 1.5 kg |
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Dimensions | 26 × 25 × 10 cm |
Brand | ASROCK |
Socket | AM5 CPU |
Desktop RAM | DDR5 |
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