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ASRock B850M Steel Legend WiFi Motherboard, Socket AM5, AMD B850, M-ATX

 

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ASRock
Part no B850M Steel Legend WiFi
Ascent part no 784621
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The ASRock B850M Steel Legend WiFi is a micro ATX motherboard designed for AMD Socket AM5 supporting Ryzen™ 9000, 8000 and 7000 Series processors. It features a robust 12+2+1 phase power design with Dr.MOS for VCore, SOC and MISC delivering stable power delivery and enhanced overclocking performance. The board supports up to 256GB DDR5 memory across four DIMM slots with speeds up to 8000+ MHz (OC). Expansion options include one PCIe 5.0 x16 slot and one PCIe 4.0 x4 slot. For storage, it provides one PCIe Gen5x4 M.2 slot, one PCIe Gen4x4 M.2 slot, one PCIe Gen4x2 M.2 slot, and four SATA3 ports. Connectivity is versatile, with Realtek 2.5G LAN, WiFi 7 (802.11be) and Bluetooth 5.4, multiple USB ports including USB 3.2 Gen2 Type-A and Type-C on the rear, and a USB 3.2 Gen1 Type-C front panel header. Audio duties are handled by the Realtek ALC1220 7.1 channel HD Audio codec with Nahimic audio technology. Additional features include BIOS Flashback support and M.2 heatsink compatibility, making it suitable for enthusiasts and daily users who value durability and aesthetics.

Technical Specifications

Product NameASRock B850M Steel Legend WiFi
ManufacturerASRock
Model NumberB850M Steel Legend WiFi
Product LineSteel Legend
Product CategoryMotherboards
CPU
SocketAM5
Supported ProcessorsAMD Ryzen 9000, 8000, and 7000 Series
Power Design12+2+1 Phase with Dr.MOS for VCore+SOC+MISC
Memory
TypeDDR5
Slots4 x DIMM
Max Capacity256GB
Supported SpeedsUp to 8000+ MHz (OC)
ChannelDual Channel
Expansion Slots
PCIe 5.01 x x16
PCIe 4.01 x x4
Storage
M.2 Slots1 x PCIe Gen5x4, 1 x PCIe Gen4x4, 1 x PCIe Gen4x2
SATA4 x SATA3 ports
Graphics Output
HDMI1 x HDMI 2.1
DisplayPort1 x DisplayPort 1.4
Audio
CodecRealtek ALC1220
Channels7.1
Audio TechnologyNahimic Audio
Networking
LANRealtek 2.5G Ethernet
WiFi802.11be WiFi 7
Bluetooth5.4
USB
Rear Ports2 x USB 3.2 Gen2 Type-A + Type-C, 2 x USB 3.2 Gen1, 4 x USB 2.0
Front Panel1 x USB 3.2 Gen1 Type-C, 4 x USB 3.2 Gen1, 4 x USB 2.0
Features
BIOSFlashback supported
Cooling SupportM.2 bottom heatsink
Form FactorMicro ATX
Warranty InformationTypically 3 years (common for ASRock motherboards; confirmation recommended from official documentation)
Overall SentimentGenerally positive reviews focus on powerful power delivery, modern connectivity including WiFi 7, and competitive pricing; minor criticisms on accessory pack and audio quality

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ASRock
Part no B850M Steel Legend WiFi
Ascent part no 784621
  • Free NZ deliveryNo hidden fees
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"Excellent work from the team to get my parcel delivered on time." Peter, 13 October 2026
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