Based on the AMD B850 chipset, the ASUS PRIME B850M-F WIFI motherboard is designed to accommodate AMD Ryzen 7000/8000/9000 processors on socket AM5. It is ideal for assembling a gaming or multimedia configuration. More affordable than the X870 chipset, it supports DDR5, PCI-Express 5.0 graphics cards and PCIe 5.0 M.2 SSDs.
CPU
AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors*
Supports up to AMD 120W CPU
* Refer to https://www.asus.com/support/download-center/ for CPU support list.
Chipset
AMD B850 Chipset
Memory
2 x DIMM slots, max. 128GB, DDR5
Supports up to
8200+MT/s(OC) with Ryzen™ 9000 Series Processors,
8400+MT/s(OC) with Ryzen™ 8000 Series Processors,
8000+MT/s(OC) with Ryzen™ 7000 Series Processors,
ECC and Non-ECC, Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list or visit https://www.asus.com/support/download-center/.
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
Graphics
1 x HDMI™ port**
* Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
** Supports 4K@60Hz as specified in HDMI 2.1.
Expansion Slots
AMD Ryzen™ 9000 & 7000 Series Desktop Processors*
1 x PCIe 5.0 x16 slot (supports x16 mode)
AMD Ryzen™ 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**
AMD B850 Chipset
1 x PCIe 4.0 x1 slot
* Please check the PCIe bifurcation table on https://www.asus.com/support/FAQ/1037507/.
** Specifications vary by CPU types.
- For compatibility details, visit https://www.asus.com/support/download-center/.
Storage
Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
AMD Ryzen™ 9000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (PCIe 5.0 x4)
M.2_2 slot (Key M), type 2242/2260/2280 (PCIe 4.0 x4)
AMD Ryzen™ 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (PCIe 4.0 x4)
M.2_2 slot (Key M), type 2242/2260/2280 (PCIe 4.0 x4/x2)*
AMD B850 Chipset
4 x SATA 6Gb/s ports
* Specifications vary by CPU type.
RAID Support
AMD RAIDXpert2 Technology*
Ryzen™ 9000 Series: RAID 0/1/5/10
Ryzen™ 8000 Series: RAID 0/1
Ryzen™ 7000 Series: RAID 0/1/10
* Specifications vary by CPU types.
Ethernet
1 x Realtek 1Gb Ethernet
ASUS LANGuard
Wireless & Bluetooth
Wi-Fi 6
1x1 Wi-Fi 6 (802.11ax)
Supports 2.4/5GHz bands
Bluetooth v5.3*
* Version may vary depending on module.
USB
Rear USB (Total 6 ports)
2 x USB 5Gbps (Type-A)
4 x USB 2.0 (Type-A)
Front USB (Total 7 ports)
1 x USB 5Gbps connector (USB Type-C)
1 x USB 5Gbps header (2 additional ports)
2 x USB 2.0 headers (4 additional ports)
* USB-C power delivery: max 5V/3A.
Audio
Realtek 7.1 Surround Sound High Definition Audio CODEC*
- Jack detection, Multi-streaming, Front Panel Jack-retasking
- Up to 24-bit/192 kHz playback
Audio Features
- Audio shielding
- Premium capacitors
- Dedicated audio PCB layers
* HD audio front panel module required for 7.1 output.
Back Panel I/O Ports
2 x USB 5Gbps (Type-A)
4 x USB 2.0 (Type-A)
1 x HDMI™ port
1 x Wi-Fi module
1 x Realtek 1Gb Ethernet
3 x Audio jacks
1 x BIOS FlashBack™ button
Internal I/O Connectors
Fan & Cooling:
1 x CPU Fan header
2 x Chassis Fan headers
Power:
1 x 24-pin Main Power
1 x 8-pin CPU Power
Storage:
2 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB:
1 x USB 5Gbps connector (Type-C)
1 x USB 5Gbps header (2 ports)
2 x USB 2.0 headers (4 ports)
Misc:
3 x ARGB Gen 2 headers
1 x Clear CMOS
1 x COM port
1 x Front Panel Audio (F_AUDIO)
1 x S/PDIF Out
1 x SPI TPM (14-1 pin)
1 x Front Panel header
Special Features
ASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage protection
- SafeSlot
- Stainless-steel back I/O
ASUS Q-Design
- Q-Dashboard
- Q-DIMM
- Q-LED Core
- Q-Slot
ASUS Thermal Solution
- Aluminum heatsink
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
Aura Sync
- ARGB Gen 2 headers
Software Features
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 2+
ASUS AI Advisor
ASUS DriverHub
ASUS CPU-Z
ASUS GlideX
TurboV Core
Adobe Creative Cloud (Trial)**
Norton 360 Deluxe (60-day Trial)
WinRAR (40-day Trial)
UEFI BIOS:
AI Cache Boost
ASUS EZ DIY:
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
* More info at www.asus.com/support
** Region restrictions apply.
BIOS
256 Mb Flash ROM, UEFI AMI BIOS
Manageability
WOL by PME, PXE
Accessories
Cables:
2 x SATA 6Gb/s cables
Misc:
1 x ASUS Wi-Fi antenna
1 x I/O shield
1 x M.2 anchor package
Documentation:
1 x Quick start guide
Operating System
Windows 11, Windows 10 64-bit
Form Factor
micro-ATX
8.9 in x 8.75 in (22.6 cm x 22.2 cm)
