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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

  • CPU Socket TypeAM5
  • CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardDDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 /
  • Maximum Memory Supported192GB

Option ROG STRIX B850-F GAMING WIFI

Struck-through versions exist but are not stocked here.

  • 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.

Highlights

  • 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

Specifications

BrandASUS
ModelROG STRIX B850-F GAMING WIFI
Part Number90MB1J70-M0AAY0
CPU Socket TypeAM5
CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
ChipsetAMD B850
Number of Memory Slots4x288pin (DDR5)
Memory StandardDDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200
Maximum Memory Supported192GB
Channel SupportedDual Channel
Memory Performance ProfileAMD EXPO
ECC SupportedYes
Buffer SupportedUn-buffered
Memory FeatureDual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO)
ASUS Enhanced Memory Profile (AEMP)
PCI Express 5.0 x16AMD Ryzen 9000 & 7000 Series Desktop Processors
- 1 x PCIe 5.0 x16 slot with Q-Release Slim
AMD Ryzen 8000 Series Desktop Processors
- 1 x PCIe 5.0 x16 slot with Q-Rlease Slim (supports PCIe 4.0 x8 or x4 mode)*
PCI Express 4.0 x161 x PCIe 4.0 x16 slot (supports x4 mode)**
* Specifications vary by CPU types.
** PCIEX16(G4) slot (supports x4 mode) from AMD B850 Chipset shares bandwidth with M.2_3
Serial ATA (SATA)2 x SATA 6Gb/s
M.2AMD Ryzen 7000 & 9000 Series Desktop Processors
M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 5.0x4 mode)
M.2_2 (Key M), type 2280/22110 (supports PCIe 5.0 x4 mode)
AMD Ryzen 8000 Series Desktop Processors
M.2_1 (Key M), type 2242/2260/2280 (supports PCIe 4.0x4 mode)
M.2_2 (Key M), type 2280/22110 (supports PCIe 4.0 x4/x2 mode)
AMD B850 Chipset
M.2_3 (Key M), type 2280 (supports PCIe 4.0 x4)**
M.2_4 (Key M), type 2280 (supports PCIe 4.0 x4)
** M.2_3 slot shares bandwidth with PCIEX16(G4). When PCIEX16(G4) slot is operating, M.2_3 will be disabled.
SATA RAID0/1/5/10
Audio ChipsetRealtek ALC4080
Audio 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
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports1 x USB 20Gbps port (1 x USB Type-C)
3 x USB 10Gbps ports (2 x Type-A + 1 x USB Type-C)
4 x USB 5Gbps ports (4 x Type-A)
4 x USB 2.0 ports (4 x Type-A)
1 x DisplayPort
1 x HDMI port
1 x Wi-Fi module
1 x Intel 2.5Gb Ethernet port
2 x Audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
1 x Clear CMOS button
Onboard USB1 x USB 10Gbps connector (supports USB Type-C)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
4 x 4-pin Chassis Fan headers
Miscellaneous
3 x Addressable Gen 2 headers
1 x CPU Over voltage jumper
1 x Front Panel Audio header (F_AUDIO)
1 x Power button
1 x 10-1 pin Front System Panel header
1 x Thermal Sensor header
1 x Thunderbolt (USB4) header
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connector
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
SoftwareROG Exclusive Software
- ROG CPU-Z
- Dolby Atmos
ASUS Exclusive Software
Armoury Crate
- AIDA64 Extreme (60 days free trial)
- Aura Creator
- Aura Sync
- Fan Xpert 4
- GameFirst
- HWiNFO
- Power Saving
ASUS DriverHub
ASUS GlideX
TurboV Core
Adobe Creative Cloud (Free Trial)
Norton 360 for Gamers (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
Windows 11Supported
FeaturesExtreme Engine Digi+
- 5K Black metallic capacitors
ASUS Q-Design
- M.2 Q-Latch
- M.2 Q-Release
- M.2 Q-Slide
- PCIe Slot Q-Release Slim (with PCIe SafeSlot)
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink backplate
- M.2 heatsink
ASUS EZ DIY
- BIOS FlashBack button
- BIOS FlashBack LED
- Clear CMOS button
- ProCool
- Pre-mounted I/O shield
- SafeSlot
- SafeDIMM
Aura Sync
- Addressable Gen 2 headers
Package ContentsCables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x Cable ties package
1 x M.2 Q-Latch package
1 x M.2 Q-Slide package
1 x ROG key chain
1 x ROG Strix stickers
4 x M.2 rubbers
Documentation
1 x Quick start guide
Shipping weight2.25 kg
Package size353 × 273 × 68 mm

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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