PRIME 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.

ASUS AI Solutions include AI Advisor as your technical expert with expertise in PC performance.

ASUS AI Advisor allows users to explore the functionality and advanced features of ASUS motherboards in a simple and straightforward way.

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.

The Digi+ voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings.

The Power Saving function contains several settings to easily optimize power consumption and maximize energy savings. You can enable a CPU power limit, darken Aura lighting and set the fan profile to a Power Saving mode. You can also toggle the Power Saver plan that is built into Microsoft Windows.

The multi-layered printed circuit board design quickly dissipates heat around the voltage regulators to improve overall system stability and provide the CPU with more overclocking headroom.

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. 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.

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.

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.

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.

This motherboard offers a versatile range of connectivity, including support for WiFi 6E, PCIe 4.0 slot and an arsenal of USB ports which includes Type-C® connections.

Built-in WiFi 6E 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, WiFi 6E delivers ultrafast wireless networking speeds with improved capacity and better performance in dense wireless environments.

Enable seamless screen sharing and control across PCs, tablets, and smartphones via wired or wireless connections, supporting multiple platforms.

The UEFI interface delivers easy-to-use configuration options for PC beginners, and advanced features for veterans.

Enable seamless screen sharing and control across PCs, tablets, and smartphones via wired or wireless connections, supporting multiple platforms.

Simplify driver management with automatic detection, one-click installation and update for smooth, efficient system performance.

Complete RGB lighting control for enthusiast systems, ensuring seamless synchronization with compatible hardware.

Three addressable Gen 2 headers detect LED counts on compatible RGB devices, automatically adjusting lighting effects accordingly.

When only the fastest will do, ASUS motherboards deliver. With faster dual-channel DDR5 memory support, AMD EXPO™ technology and PCIe® 4.0 support for both graphics and NVMe, you can play the most demanding games and deliver your biggest projects with the revolutionary performance of an ASUS motherboard and AMD Ryzen™ 9000, 8000, and 7000 Series processors.

Form Factor

• ATX Form Factor - 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )

CPU

• AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors

Chipset

• AMD B840 Chipset

Memory

• 4 x DIMM slots, max. 192GB, DDR5 Supports up to 7600+MT/s (OC) with Ryzen™ 9000 & 8000 & 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)

Graphics

• 1 x DisplayPort** - 1 x HDMI™ port*** - ** Supports max. 8K@30Hz as specified in DisplayPort 1.4. *** Supports 4K@60Hz as specified in HDMI 2.1.

Expansion Slots

• AMD Ryzen™ 9000 & 7000 Series Desktop Processors - 1 x PCIe 4.0 x16 slot (supports x16 mode) - AMD Ryzen™ 8000 Series Desktop Processors - 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)** - AMD B840 Chipset - 1 x PCIe 3.0 x16 slot (support x4 mode)*** - 2 x PCIe 3.0 x16 slots (support x1 mode)*** - 1 x PCIe 3.0 x1 slot*** - ** Specifications vary by CPU types. *** The PCIEX16(G3)_1/3 and PCIEX1(G3) share bandwidth with PCIEX16(G3)_2. The PCIEX16(G3)_2 will run x1 mode when any of the PCIEX16(G3)_1/3 and PCIEX1(G3) slots is occupied.

Storage

• 3 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 (supports PCIe 4.0 x4 mode) - M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) - AMD Ryzen™ 8000 Series Desktop Processors - M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) - M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4/x2 mode)* - AMD B840 Chipset - M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 mode - 4 x SATA 6Gb/s ports - * Specifications vary by CPU types. - AMD RAIDXpert2 Technology - Ryzen™ 9000 Series Processors: RAID 0/1/5/10 - Ryzen™ 8000 Series Processors: RAID 0/1 - Ryzen™ 7000 Series Processors: RAID 0/1/10

LAN

• 1 x Realtek 2.5Gb Ethernet, ASUS LANGuard

Wireless & Bluetooth

• Wi-Fi 6E - 2x2 Wi-Fi 6E (802.11ax) - Supports 2.4/5/6GHz frequency band - Bluetooth® v5.3

Audio

• Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback - Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.

USB Ports

• Rear USB (Total 8 ports) - 2 x USB 10Gbps port(s) (1 x Type-A + 1 x USB Type-C®) - 2 x USB 5Gbps ports (2 x Type-A) - 4 x USB 2.0 ports (4 x Type-A) - Front USB (Total 7 ports) - 1 x USB 5Gbps 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 - * USB Type-C® power delivery output: max. 5V/3A

OS Support

• Windows® 11, Windows® 10 64-bit

Internal I/O Ports

• Fan 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 header - Power Related - 1 x 24-pin Main Power connector - 1 x 8-pin +12V CPU Power connectors - 1 x 4-pin +12V CPU Power connectors - Storage Related - 3 x M.2 slots (Key M) - 4 x SATA 6Gb/s ports - USB - 1 x USB 5Gbps 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 - Miscellaneous - 3 x Addressable Gen 2 headers - 1 x Clear CMOS header - 1 x Chassis Intrusion header - 1 x COM Port header - 1 x Front Panel Audio header (F_AUDIO) - 1 x S/PDIF Out header - 1 x SPI TPM header (14-1 pin) - 1 x 10-1 pin System Panel header - 1 x Thunderbolt™ (USB4®) header

Back I/O Ports

• 1 x USB 10Gbps port (1 x USB Type-C®), 1 x USB 10Gbps port (1 x Type-A), 2 x USB 5Gbps ports (2 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 Realtek 2.5Gb Ethernet port, 3 x Audio jacks, 1 x BIOS FlashBack™ button

Special Features

• ASUS 5X PROTECTION III - DIGI+ VRM - LANGuard - Overvoltage protection - SafeSlot core+ - Stainless-steel back I/O - ASUS Q-Design - Q-Antenna - Q-Dashboard - Q-DIMM - Q-LED Core - Q-Slot - ASUS Thermal Solution - Flexible M.2 heatsink - VRM heatsink design - ASUS EZ DIY - BIOS FlashBack™ button - BIOS FlashBack™ LED - Pre-mounted I/O shield - SafeSlot core+ - Aura Sync - Addressable Gen 2 headers

Software Features

• ASUS Exclusive Software - Armoury Crate - Aura Creator - Aura Sync - Fan Xpert 2+ - Power Saving - ASUS Driver Hub - ASUS GlideX - TurboV Core - ASUS CPU-Z - Adobe Creative Cloud (Free Trial) - Norton 360 Deluxe (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

BIOS

• 256 Mb Flash ROM, UEFI AMI BIOS

Manageability

• WOL by PME, PXE

Accessories

• Cables - 2 x SATA 6Gb/s cables - Miscellaneous - 1 x ASUS WiFi Q-Antenna - 1 x M.2 rubber packages - 3 x Screw packages for M.2 SSD - Documentation - 1 x Quick start guide

Warranty

• 3 Years Limited