Description
B840-PLUS WIFI
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B840-PLUS WIFI motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
* CEC Tier II ready
8+2+1
phase digital power design
AEMP
for enhanced DDR5 performance
2.5 Gb Ethernet
for faster data transfers
Wi-Fi 6E
for stable Wi-Fi connection and lower latency
USB 10 Gbps Type-C®
for rapid data transmission
PCIe® 4.0 slots
for graphics card and storage
EZ PC DIY
for easier build customization
Pre-mounted I/O shield
for safeguarding ports and enhancing aesthetics
Aura Sync
for full RGB lighting control
Performance
- AM5 Socket for AMD Ryzen™ Desktop processors
- 1 x PCIe® 4.0 x16
(supports x16 mode)
SafeSlot Core+ - 1 x PCIe® 3.0 x16
(max supports x4 mode)
2 x PCIe® 3.0 x16
(support x1 mode) - 8+2+1 phase digital power design
- 4 x DIMM slots DDR5 support Dual channel AEMP
- M.2_1 2280
(PCIe® 4.0 x4 mode) - M.2_2 2280
(PCIe® 4.0 x4 mode) - M.2_3 2242/2260/2280
(PCIe® 3.0 x4 mode)
Cooling
- VRM heatsinks
- Chassis fan header
- M.2 heatsink
- CPU OPT fan header
- CPU fan header
- AIO pump fan header
- Chipset heatsink
- 3 x Chassis fan headers
Flexibility
- DisplayPort™
- 1 x USB 10 Gbps Type-A
- HDMI™ port
- BIOS FlashBack™ button
- 4 x USB 2.0 Type-A
- 1 x USB 10 Gbps Type-C®
- 2.5 Gb Ethernet
- 2 x USB 5 Gbps Type-A
- Wi-Fi 6E
- 3 x Audio jacks
- 1 x USB 5Gbps header
(supports 2 additional USB 5Gbps ports)
- 1 x USB 5Gbps connector
(supports USB Type-C®) - 2 x SATA 6 Gbps ports
- 1 x Thunderbolt™ (USB4®) header
- 2 x SATA 6 Gbps ports
- 2 x USB 2.0 headers
(support 4 additional USB 2.0 ports)
Customization
- 2 x Addressable gen 2 headers
- 1 x Addressable gen 2 header
Performance
AI Solutions
ASUS AI Solutions include AI Advisor as your technical expert with expertise in PC performance.
AI Advisor
ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way.7
AI Advisor
Performance
Digital Power Design
PRIME B840-PLUS WIFI features an 8+2+1 phase power design with discrete MOSFETs, ensuring efficient and stable power delivery for AMD processors plus steady performance for day-to-day use.
Vcore power
SOC power<
Misc power
Six-layer PCB design
Enhanced stability and overclocking.
Power Saving
Optimize power with CPU, lighting, and fan settings.
Digi+ VRM control
Real-time voltage control.
Enhanced Memory & Storage Performance
Enhanced DDR5 performance
Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B840-PLUS WIFI maximizes the potential of your DDR5 modules, from entry-level to extreme-speed kits.1
For entry-level modules without EXPO™ support, ASUS Enhanced Memory Profile (AEMP) automatically detects memory chips and provides optimized profiles for enhanced performance.
For those looking to surpass stock DDR5 speeds, the PRIME B840-PLUS WIFI offers extensive AMD Extended Profiles for Overclocking (EXPO™) support and a wide array of UEFI settings for further performance tweaks.2.
Three M.2 slots (up to 64 Gbps)
PRIME B840-PLUS WIFI offers a total of three M.2 slots, including two that support data-transfer speeds of up to 64 Gbps via PCIe® 4.0, and one that supports PCIe® 3.0. This enables quicker boot-up and app load times with OS or application drives.3
Cooling
Cooler by design
The PRIME B840-PLUS WIFI motherboard is engineered with multiple onboard heatsinks and an array of hybrid fan headers to help ensure your rig stays cool and stable under intense workloads.
Smart Cooling precision
ASUS Fan Xpert 2+
ASUS Fan Xpert 2+ software provides comprehensive control over fans. 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 can also be controlled via the UEFI BIOS.
Cooler compatibility
ASUS AIO coolers offer robust performance, high overclocking potential, bold aesthetics and customizable functionality for new motherboards, empowering you to build your dream gaming rig.5
Flexibility
Empowering connections
This motherboard offers a versatile range of connectivity, including support for Wi-Fi 6E, PCIe® 4.0 slot and an arsenal of USB ports which includes Type-C® connections.
Wi-Fi 6E
2.5 Gb Ethernet
PCIe® 4.0
PCIe® 4.0 slot
USB 10 Gbps
Wi-Fi 6E
Built-in Wi-Fi 6E4 technology takes advantage of the newly available radio spectrum in the 6 GHz band. With triple the bandwidth of the 2.4/5/6 GHz band, Wi-Fi 6E delivers ultrafast wireless networking speeds with improved capacity and better performance in dense wireless environments.
Realtek 2.5 Gb Ethernet
Realtek 2.5 Gb Ethernet reduces CPU overhead and offers exceptionally high TCP and UDP throughput for faster, smoother data transfers.
USB 10 Gbps Type-C®
A batch of USB ports support high-end rigs loaded with peripherals, including a rear USB Type-C® connector with ultrafast USB 10 Gbps for transmission speeds of up to 10 Gbps.
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