Asrock Motherboard B850M Steel Legend WiFi

Specifications:

• Product Number: 90-MXBS20-A0UAYZ
• Model: B850M Steel Legend WiFi

Processor

• AMD Socket: AM5
• for Ryzen 9000, 8000 and 7000 Series Processors
• 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)
• Supports EXTended Profiles for Overclocking (EXPO) memory modules

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 and max. resolution up to 4K 120Hz
  • 1 x DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3 and max. resolution up to 4K 120Hz

Audio

• 7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec)
• Individual PCB Layers for R/L Audio Channel
• Impedance Sensing on Rear Out port
• 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

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)

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

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

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)

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
• 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 3 USB 2.0 ports)
• 2 x USB 3.2 Gen1 Headers (Support 2 USB 3.2 Gen1 ports)
• 1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s)

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 Type-A 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

BIOS

• 256Mb AMI UEFI Legal BIOS with GUI support

Dimensions

• Form Factor: micro ATX
• 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
• 2oz Copper PCB

Operating System

• Windows 10, Windows 11