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ATX motherboard with black heatsinks and silver I/O shield

ASUS

ASUS ROG STRIX B850-F GAMING WIFI AMD AM5 ATX motherboard

SKU CH-SR78-MZBM1 MPN ROG STRIX B850-F GAMING WIFI

An AM5 ATX board with 16+2+2 power stages, DDR5 up to 7200, WiFi 7, 2.5 Gb Ethernet, four M.2 slots and 19 USB ports including a 20 Gbps Type-C front connector

  • ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 /

Model ROG STRIX B850-F GAMING WIFI

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  • Ready for AMD Ryzen 9000, 8000 and 7000 Series processors via AM5 socket
  • 16+2+2 power stages rated at 80A each with dual ProCool connectors
  • DDR5 support up to 7200 with AMD EXPO and ASUS AEMP profiles
  • Two PCIe 5.0 M.2 slots plus two PCIe 4.0 M.2 slots, all with heatsinks
  • On-board WiFi 7 and Intel 2.5 Gb Ethernet for high-speed networking

Ready for AMD Ryzen 9000, 8000 and 7000 Series

This ATX motherboard uses the AM5 socket and AMD B850 chipset to support Ryzen 9000, 8000 and 7000 Series processors. A 16+2+2 power stage design rated for 80A per stage with dual ProCool connectors delivers stable current for multi-core workloads. Integrated heatsinks and a high-conductivity thermal pad manage heat across the VRM and M.2 areas.

DDR5 memory up to 192 GB with EXPO and AEMP

Four DDR5 slots accept up to 192 GB in dual-channel mode at speeds from 5000 to 7200 MT/s. AMD EXPO profiles and ASUS Enhanced Memory Profile (AEMP) simplify overclocking and optimisation. ECC un-buffered modules are supported for data integrity. The board runs out of headroom when all four slots are populated at the highest frequencies, where signal integrity may limit stability.

WiFi 7, 2.5 Gb Ethernet

Onboard WiFi 7 (802.11be) and Intel 2.5 Gb Ethernet provide high-throughput, low-latency networking enhanced by AI Networking II. Rear I/O includes 19 USB ports, one front-panel USB 20 Gbps Type-C connector and four USB 10 Gbps ports. HDMI output and Realtek ALC4080 audio complete the connectivity. Aura Sync lighting control is included for system-wide RGB coordination.

How it compares

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

Price $221.99
Typical for this category: the median of 1,906 items is $224.49.

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Specifications

Product
Brand nameASUS
Model nameROG STRIX B850-F GAMING WIFI
Part number90MB1J70-M0AAY0
Processor
ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
CPU socketAM5
ChipsetAMD B850
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200
Max supported RAM192 GB
Memory channelsDual Channel
Memory profilesAMD EXPO
ECC supportYes
BufferingUn-buffered
Storage
SATA ports2 x SATA 6Gb/s
SATA and RAID support0/1/5/10
Audio & video
Audio chipRealtek ALC4080
Sound channelsROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080*
- Impedance sense for front and rear headphone outputs
- Supports: Jack-detection, Multi-streaming, Front Panel MIC Jack-retasking
- High quality 120 dB SNR stereo playback output and 110 dB SNR recording input
- Supports up to 32-Bit/384 kHz playback on front panel
Audio Features
- SupremeFX Shielding Technology
- Savitech SV3H712 AMP
- Rear optical S/PDIF out port
- Premium audio capacitors
- Audio cover
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
Onboard USB headers1 x USB 10 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connector
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Shipping weight2.25 kg
Package size353 × 273 × 68 mm
Compatibility
Windows 11 supportSupported
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

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Questions about this item

Will this board run my Ryzen 9000 processor at full PCIe 5.0 x16 speed?

Yes, with Ryzen 9000 and 7000 series CPUs the primary slot operates at PCIe 5.0 x16 and includes Q-Release Slim for easy graphics card removal.

How many M.2 drives can I install and which support the fastest speeds?

Four M.2 slots are available; the top two support PCIe 5.0 x4 with Ryzen 9000 and 7000 series, while the lower pair run at PCIe 4.0 and all include substantial heatsinks.

What memory speeds can I reach with four sticks installed?

The board validates DDR5 up to 7200 MT/s via AMD EXPO and AEMP, supports up to 192 GB across four slots, and runs un-buffered ECC modules in dual-channel mode.

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