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ATX motherboard with black printed circuit board, silver heatsinks, and rear I/O panel

ASRock

ASRock B850 Pro RS WiFi AMD motherboard

SKU CH-07KV-3R3G6 MPN B850 Pro RS WiFi

ATX AM5 board with 14+2+1 phase 80A Dr.MOS, four DDR5 slots to 8000+ OC, 256 GB max, one PCIe 5.0 x16, one PCIe 4.0 x16, 128 Gb/s M.2, 64 Gb/s M.2, four SATA, 10 GbE LAN and Wi-Fi

  • ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryUp to 8000+(OC)

Model B850 Pro RS WiFi

Show 4 more
  • Ready for Ryzen 7000, 8000 and 9000 CPUs on AM5 socket
  • 14+2+1 phase VRM with 80 A Dr.MOS for stable power delivery
  • Four DDR5 slots support up to 256 GB at 8000+ MT/s OC
  • One PCIe 5.0 x16 slot plus three PCIe 4.0 M.2 slots
  • Realtek ALC897 7.1-channel audio with Nahimic enhancement

Socket AM5 platform

The ASRock B850 Pro RS WiFi motherboard uses the AMD B850 chipset on an ATX form factor. It accepts Ryzen 7000, 8000 and 9000 series processors in the AM5 socket. Four DDR5 slots support up to 256 GB of memory at speeds up to 8000+(OC) with AMD EXPO and Intel XMP 3.0 profiles. The board is aimed at builders who want a stable foundation for daily computing and gaming.

Sustained load behaviour

A 14+2+1 phase power design uses 80 A Dr.MOS devices to supply the CPU VCore, SOC and miscellaneous rails. Hi-Density power connectors handle the higher current demanded by heavy overclocking. The VRM layout is built for smooth delivery and lower temperatures during extended sessions rather than brief bursts. Dragon RTL8125BG LAN and Realtek ALC897 7.1 channel audio with Nahimic complete the core I/O.

Upgrade context

The board adds a PCIe 5.0 x16 slot running at Gen5 x16 with 9000 and 7000 series CPUs, plus a PCIe 4.0 x16 slot at x4 mode. Storage includes one Blazing M.2 socket at PCIe Gen5 x4, two Hyper M.2 sockets at PCIe Gen4 x4 and one Ultra M.2 at PCIe Gen3 x4, alongside four SATA 6 Gb/s ports. USB provision covers Gen2x2 Type-C front, Gen2 Type-C rear, Gen1 Type-C rear, eight Gen1 ports and ten USB 2.0 ports. Moving from an older AM4 or entry AM5 board makes sense when Gen5 graphics or Gen5 NVMe bandwidth are required.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $124.99
Cheaper than about 68% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASRock
Model nameB850 PRO RS WIFI
Processor
ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
CPU socketAM5
ChipsetAMD B850
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryUp to 8000+(OC)
Max supported RAM256 GB
Memory channelsDual Channel
Memory profilesAMD EXPO / Intel XMP 3.0
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
SATA and RAID supportSupports RAID 0 and RAID 1 for SATA storage devices
Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
Audio & video
Audio chipRealtek ALC897
Sound channels7.1 Channels
Connectivity
Ethernet controllerDragon RTL8125BG
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 ax
Bluetooth support5.2
Ports & slots
PCIe 4.0 x16 slots1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode*
Rear panel ports2 x Antenna Ports
1 x HDMI Port
1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)
1 x USB 3.2 Gen1 Type-C Port (DP-alt mode supports DP1.4a)
4 x USB 3.2 Gen1 Type-A Ports
6 x USB 2.0 Ports
1 x RJ-45 LAN Port
1 x BIOS Flashback Button
HD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB headers2 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 Gen2 × 2 Header (20 Gb/s)
Power
Power connectors1 × 24 pin ATX Power Connector
2 × 8 pin 12 V Power Connectors (Hi-Density Power Connector)
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Shipping weight1.81 kg
Package size368 × 292 × 76 mm
Compatibility
Windows 11 supportWindows OS 10 64-bit / 11 64-bit
In the box
In the box2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas
More details
BIOS256Mb AMI UEFI Legal BIOS with GUI support

Other versions of this model

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Questions about this item

How much power does the 14+2+1 phase VRM with 80A Dr.MOS draw when the system runs all day?

The 14+2+1 phase design with 80A Dr.MOS delivers efficient power to the CPU, reducing heat during sustained loads.

Which DDR5 memory kit must I already own to reach the 8000+(OC) speed on the four 288-pin slots?

A DDR5 kit rated for 8000+(OC) with AMD EXPO or Intel XMP 3.0 profiles is required to hit the maximum memory speed.

Will my existing SATA SSDs and PCIe 4.0 M.2 drives work with the four SATA 6Gb/s ports and the three Hyper M.2 slots?

Yes, the four SATA 6Gb/s ports and three Hyper M.2 sockets support SATA SSDs and PCIe 4.0 x4 NVMe drives respectively.

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