ASRock B850 Pro-A WiFi AMD AM5 Socket Motherboard, ATX, 4x DDR5 Slots, 4x M.2 Sockets, 2.5GbE LAN, Wi-Fi 6E, 1x HDMI Port / 1x USB-C

ASRock B850 PRO RS WiFi Motherboard (ATX, AM5, DDR5, WiFi 6E)

The ASRock B850 PRO RS WiFi is an ATX motherboard designed for AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series processors, combining high-performance power delivery, extensive storage support, and fast connectivity with integrated WiFi 6E.

Key Features

• CPU Support

• Supports AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors

• Power Design

• 14 + 2 + 1 power phase design
• 80A Dr.MOS for VCore + SOC + MISC
• Enlarged heatsink armor for improved heat dissipation

• Vcore with Dr.MOS design for smoother power delivery

• Memory

• 4 x DDR5 DIMM slots
• Dual Channel DDR5, up to 8000+ (OC)
• Supports DDR5 ECC/non-ECC, un-buffered memory
• Maximum system memory capacity: 256GB

• Supports XMP and EXPO memory profiles

• Graphics & Display

• Integrated AMD RDNA™ graphics (actual support may vary by CPU)
• 1 x HDMI 2.1 TMDS/FRL 8G compatible
  • Supports HDR, HDCP 2.3, up to 4K 120Hz

• 1 x USB 3.2 Gen1 Type-C (rear) with DP-alt mode

  • Supports DP 1.4 HBR3, up to 4K 60Hz (DP-alt mode supports DP1.4a)

• Expansion & PCIe

• 1 x PCIe 5.0 x16 slot (PCIE1), CPU
• 1 x PCIe 4.0 x16 slot (PCIE2, x4 mode), chipset
• 1 x M.2 Key E slot (2230) for WiFi/BT PCIe module
• PCIe Gen5 support for graphics and M.2
• 15µ gold contact in VGA PCIe slot (PCIE1)
• PCIE1 behavior:
  • Gen5x16 with Ryzen 9000 and 7000 Series
  • Gen4x8 with 8000 (Phoenix 1)
  • Gen4x4 with 8000 (Phoenix 2)
• If M2_3 is occupied, PCIE2 will be disabled

• Supports NVMe SSD as boot disks

• Storage & M.2

• Supports up to 4 x NVMe M.2 SSDs
• 1 x Blazing M.2 (PCIe Gen5x4)
• 2 x Hyper M.2 (PCIe Gen4x4)
• 1 x Ultra M.2 (PCIe Gen3x4)
• 4 x SATA3 6.0 Gb/s ports

• M.2 bottom heatsink support for improved heat dissipation

• Audio

• Realtek ALC897 7.1 CH HD Audio Codec

• Nahimic Audio support

• Networking

• Realtek Dragon RTL8125BG 2.5G LAN (10/100/1000/2500 Mb/s)
  • Dragon 2.5G LAN software
  • Smart auto adjust bandwidth control
  • Visual network usage statistics
  • Optimized default modes for gaming, browsing, and streaming
  • User customized priority control

• 802.11axe WiFi 6E module

  • Supports IEEE 802.11a/b/g/n/ac/ax/axe
  • Dual-Band 2x2 with extended 6GHz band support
  • Bluetooth 5.2
  • MU-MIMO support
  • 2 antennas (2T2R diversity)
  • WiFi 6E (6GHz) support dependent on OS, region regulations, router, and updates

• USB & Connectivity

• Front:
  • 1 x USB 3.2 Gen2x2 Type-C (20 Gb/s)
  • 4 x USB 3.2 Gen1 Type-A (via headers)
  • 4 x USB 2.0 (via headers)
• Rear:
  • 1 x USB 3.2 Gen2 Type-C (10 Gb/s)
  • 1 x USB 3.2 Gen1 Type-C (DP-alt mode supports DP1.4a)
  • 4 x USB 3.2 Gen1 Type-A
  • 6 x USB 2.0
• All USB ports with ESD protection

• USB Type-C with DP-alt mode for display and data over a single cable

• Cooling & Headers

• Supports M.2 bottom heatsink
• 2 x CPU fan connectors (4-pin, smart fan speed control)
• 4 x chassis fan connectors (4-pin, smart fan speed control)
• 1 x AIO pump fan connector (4-pin, smart fan speed control)
• CPU_FAN1 up to 1A (12W)
• CPU_FAN2, CHA_FAN1–4, AIO_PUMP up to 3A (36W)

• Auto detection of 3-pin/4-pin fans (CPU_FAN2, CHA_FAN1–4, AIO_PUMP)

• RGB & Lighting

• 1 x RGB LED header
• 3 x addressable LED headers
• Total support:
  • Up to 12V/3A, 36W LED strip
  • Up to 5V/3A, 15W LED strip

• ASRock Polychrome SYNC support

• Convenience & DIY-Friendly

• Flexible integrated I/O shield
• BIOS Flashback button
• ASRock Auto Driver Installer
• ASRock EZ Troubleshooter
• ASRock Post Status Checker
• EZ Update

Detailed Specifications

Platform

CPU

Memory

Expansion Slots

Graphics Output

Audio

LAN

Wireless

USB

Rear I/O Panel

Storage

RAID

Headers & Connectors

• 1 x SPI TPM 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)
• 4 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
• 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 x USB 2.0)
• 2 x USB 3.2 Gen1 headers (support 4 x USB 3.2 Gen1)
• 1 x USB 3.2 Gen2x2 Type-C front panel header (20 Gb/s)

BIOS

Software & UEFI

• ASRock Motherboard Utility (A-Tuning)
• ASRock Dragon 2.5G LAN Software
• ASRock Polychrome SYNC
• ASRock Auto Driver Installer
• ASRock EZ Mode
• ASRock Full HD UEFI
• ASRock Instant Flash

Operating System Support

• Microsoft Windows 10 64-bit
• Microsoft Windows 11 64-bit

Certifications

• FCC
• CE
• ErP/EuP ready (ErP/EuP ready power supply required)

Included Accessories

• 2 x SATA data cables
• 2 x ASRock WiFi 2.4/5/6 GHz antennas

Unique Features Summary

• Superb productivity with PCIe Gen5 support for graphics and M.2
• Rock-solid durability with 14+2+1 power phase design and 80A Dr.MOS
• Ultrafast connectivity with 2.5G LAN, WiFi 6E, and USB 3.2 Gen2x2 Type-C
• Flexible integrated I/O shield for easier installation
• M.2 bottom heatsink support to maintain SSD performance
• EZ Update, BIOS Flashback, and diagnostic tools for streamlined setup and troubleshooting