ASUS PRIME B850-PLUS WIFI AM5 ATX Motherboard

BH #ASPRB850PLWF • MFR #PRIME B850-PLUS WIFI
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ASUS PRIME B850-PLUS WIFI AM5 ATX Motherboard
Key Features
  • ATX Form Factor
  • AMD B850 Chipset
  • AM5 Socket
  • 4 x Dual-Channel DDR5-8300
Build a powerful AMD Ryzen system with the PRIME B850-PLUS WIFI AM5 ATX Motherboard from ASUS. Powered by the AMD B850 chipset, this motherboard supports Ryzen 7000, 8000, and 9000 series processors with the AM5 socket. Designed for power, this ATX motherboard utilizes the PCIe 5.0 data bandwidth to deliver high performance for intensive tasks such as gaming, video editing, and more. Use up to 256GB of dual-channel DDR5 memory, reaching 8300 MHz when overclocked, thanks to four memory slots. Storage wise, this motherboard supports three M.2 slots and four SATA III ports, which can be configured into RAID 0, 1, 5, or 10 configurations. The PCIe 5.0 x16 slot can accommodate a high-end graphics card, while the additional PCIe 4.0 x8, PCIe 4.0 x4, and PCIe 3.0 x4 slots are available for compatible expansion cards.
More Details
Temporarily Out of Stock
Expected availability: 7-14 Business Days
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800-606-6969

ASUS B850-PLUS WIFI Overview

Build a powerful AMD Ryzen system with the PRIME B850-PLUS WIFI AM5 ATX Motherboard from ASUS. Powered by the AMD B850 chipset, this motherboard supports Ryzen 7000, 8000, and 9000 series processors with the AM5 socket. Designed for power, this ATX motherboard utilizes the PCIe 5.0 data bandwidth to deliver high performance for intensive tasks such as gaming, video editing, and more. Use up to 256GB of dual-channel DDR5 memory, reaching 8300 MHz when overclocked, thanks to four memory slots. Storage wise, this motherboard supports three M.2 slots and four SATA III ports, which can be configured into RAID 0, 1, 5, or 10 configurations. The PCIe 5.0 x16 slot can accommodate a high-end graphics card, while the additional PCIe 4.0 x8, PCIe 4.0 x4, and PCIe 3.0 x4 slots are available for compatible expansion cards.

Utilize your CPU's integrated graphics and connect a monitor directly to the back I/O panel thanks to HDMI and DisplayPort ports. The Prime B850 features integrated Wi-Fi 6E that's capable of reaching up to 5 Gb/s with compatible networking devices. You can also take advantage of the 2.5 GbE port for a stable wired connection. Peripherals such as keyboards and mice can be connected to the rear panel's USB-A 2.0 ports, with additional USB-A and USB-C ports for drives and storage. Additionally, wireless accessories such as headsets can be connected with Bluetooth 5.3 technology. Windows 11 or Windows 10 64-Bit is required to take advantage of this motherboard's features.

AI Solutions
AI Cache Boost
Supercharge your large language model (LLM) workflows with AI Cache Boost. Exclusive to ASUS AMD 800 and 600 series motherboards that use Ryzen 9000 Series CPUs, this BIOS setting optimizes CPU cache and memory pathways to deliver up to 29% faster local LLM performance with high-speed memory tuning.
AI Advisor
Explore the functionality and advanced features of ASUS motherboard with the AI Advisor.
Performance
Power Design
Th 8+2+1 phase power design with discrete MOSFETs, along with the six layer PCB design, ensure efficient and stable power delivery to your AMD processor.
Digi+ VRM Control
The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU frequency for stability and performance.
Smart Cooling
ASUS Fan Xpert 2+
The ASUS Fan Xpert 2+ software provides comprehensive control over fans and all-in-one (AiO) liquid coolers. Whether cooling with air or water, an Auto-Tuning mode intelligently configures all parameters with a single click. There's also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans and coolers can also be controlled via the UEFI BIOS.
Personalization
ASUS GlideX
Using this app enables smooth screen sharing and control across PCs, tablets, and smartphones via wired or wireless connections, across multiple platforms.
ASUS DriverHub
Simplify driver management with automatic detection, one-click installation and update for smooth, efficient system performance.
Armoury Crate
Customize Aura Sync RGB and control ASUS devices using the Armoury Crate software.
Aura Sync
Enjoy complete RGB lighting control and synchronize the effects with compatible peripherals such as keyboards, mice, and monitors.
Addressable Gen 2 RGB Headers
The three addressable Gen 2 headers detect LED counts on light strips and other compatible RGB devices, then automatically adjusts the lighting effects accordingly.
DIY Friendly
Q-Antenna
Using this app enables smooth screen sharing and control across PCs, tablets, and smartphones via wired or wireless connections, across multiple platforms.
Q-LED Core
The on-board Q-LED troubleshooting lights give PC builders a quick indicator to confirm that key components are functioning normally during startup. It can also alert them when memory modules have not been properly installed.
UPC: 197105931503

ASUS B850-PLUS WIFI Specs

Key Specs
Chipset
AMD B850
CPU Socket
AM5
Memory Slots
4x 288-Pin
Memory Type Support
DDR5, 8000 MT/s Maximum Supported Speed
M.2 Slots
22110
Expansion Slots
1x PCIe 5.0 x16
1x PCIe 4.0 x16 (x8 mode)
1x PCIe 4.0 x16 (x4 mode)
2x PCIe 3.0 x16 (x1 mode)
Wi-Fi
Wi-Fi 6E (802.11ax)
Form Factor
ATX
CPU
Chipset
AMD B850
CPU Socket
AM5
Back Panel I/O
USB I/O
1x USB-C (USB 3.1/3.2 Gen 2)
3x USB-A (USB 3.1/3.2 Gen 2)
2x USB-A (USB 3.0 / 3.1/3.2 Gen 1)
2x USB-A (USB 2.0)
Thunderbolt I/O
No
Display I/O
1x HDMI 2.1 Output
1x DisplayPort 1.4 Output
Audio I/O
3x 1/8" / 3.5 mm
Ethernet / Controller
1x Realtek 2.5Gigabit
Buttons
BIOS Flashback
Memory
Memory Slots
4x 288-Pin
Memory Type Support
DDR5, 8000 MT/s Maximum Supported Speed
Maximum Capacity
256 GB
Channel Architecture
Dual Channel
ECC Support
Non-ECC, ECC Unbuffered
Storage Expansion
SATA
4x SATA III
M.2 Slots
3x M.2 (M Key) 22110/2280/2260/2242
RAID Support
RAID 0, 1, 5, 10
Internal I/O
Expansion Slots
1x PCIe 5.0 x16
1x PCIe 4.0 x16 (x8 mode)
1x PCIe 4.0 x16 (x4 mode)
2x PCIe 3.0 x16 (x1 mode)
USB
1x USB 3.0 / 3.1/3.2 Gen 1 Header (Supports 1 USB-C Port)
1x USB 3.0 / 3.1/3.2 Gen 1 Header (Supports 2 USB-A Port)
3x USB 2.0 Header (Supports 6 USB-A Port)
Air Cooling
2x 4-Pin CPU
Liquid Cooling
1x 4-Pin Pump
Power Connectors
1x 24-Pin Mainboard
Security
Chassis Intrusion, TPM Header
LED Header
1x RGB
Audio
1x S/PDIF
Diagnostics
Clear CMOS, Flash BIOS, Power
BIOS
ROM
256 Mb
Front Panel I/O
Front Panel I/O
USB 2.0, USB 3.0 / 3.1/3.2 Gen 1, USB 3.1/3.2 Gen 2
Audio
Audio Codec
Realtek (7.1-Channel)
DAC
No
Wireless
Wi-Fi
Wi-Fi 6E (802.11ax) with MU-MIMO Support
Bluetooth
Bluetooth 5.3
Software
OS Compatibility
Windows 10 to 11
Physical
Form Factor
ATX
Dimensions
12 x 9.6" / 30.5 x 24.4 cm
Packaging Info
Package Weight
3.615 lb
Box Dimensions (LxWxH)
14.6 x 11.5 x 2.8"

ASUS B850-PLUS WIFI Reviews

Rgb Fans wonr change color

By Craig Culbertson
Rated 4 out of 5
Date: 2026-01-18

The asus motherboard uses Armoury Crate software to change the rgb fans but i can't get it to work. The physical buttons on the case will manually change them, but they won't dim the brightness

Great mobo, would recommend

By _Nick
Rated 5 out of 5
Date: 2025-08-17

Good entry motherboard with a very nicely designed bios and very easy to update and change settings.

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