SKU: 40686204434

ASUS PRIME B840M-A WIFI AM5 mATX Motherboard

Sale price$2156.73 Regular price$2396.37
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

ASUS PRIME B840M-A WIFI AM5 mATX MotherboardDesigned to fully leverage the power of AMD Ryzen 9000, 8000, and 7000 Series processors, the ASUS PRIME B840M A WIFI motherboard is an advanced, feature rich platform built for DIY builders, gamers, and creative professionals alike. Its expertly engineered with ASUS' AI Advisor and Advanced AI PC ready architecture, making it ideal for handling heavy workloads and next gen AI applications. The boards robust 8+2+1 power phase design with discrete

Designed to fully leverage the power of AMD Ryzen™ 9000, 8000, and 7000 Series processors, the ASUS PRIME B840M-A WIFI motherboard is an advanced, feature-rich platform built for DIY builders, gamers, and creative professionals alike. It’s expertly engineered with ASUS' AI Advisor and Advanced AI PC-ready architecture, making it ideal for handling heavy workloads and next-gen AI applications. The board’s robust 8+2+1 power phase design with discrete MOSFETs ensures smooth and efficient power delivery, enabling stable performance across demanding tasks.

The PRIME B840M-A WIFI supports up to 256GB of blazing-fast DDR5 memory with speeds up to 7600+MT/s (OC), along with ASUS AEMP and AMD EXPO™ profiles for streamlined overclocking. Comprehensive memory tuning tools are embedded within the UEFI BIOS, giving both newcomers and veterans the flexibility to fine-tune for performance or efficiency. Storage options are future-ready with three M.2 slots—two PCIe 4.0 and one PCIe 3.0—allowing faster boot times, lightning-quick application launches, and expansive SSD capacity. Q-Design innovations such as Q-Antenna and Q-LED Core make system assembly and troubleshooting quick and intuitive.

Stay ahead of the curve with cutting-edge connectivity options, including integrated Wi-Fi 6E, Realtek 2.5Gb Ethernet, and USB 10Gbps Type-A and 5Gbps Type-C® ports for high-speed data transfer and reduced latency. Onboard HDMI, dual DisplayPort, and Realtek 7.1 Surround Sound offer seamless multimedia integration for gaming, streaming, and content creation. The motherboard’s thermal design includes a VRM heatsink, passive chipset heatsink, hybrid fan headers, and AiO pump support, ensuring optimal cooling even during peak performance sessions.

Compact in size but packed with features, the ASUS PRIME B840M-A WIFI M-ATX motherboard is built to make your build stand out—both inside and out. Onboard Aura Sync-compatible RGB headers support Gen 2 addressable devices, giving you full control of system lighting via ASUS’ intuitive software suite. Whether you're customizing airflow, syncing RGB effects, or pushing your system to the limit, this motherboard offers a balance of premium performance, simplified DIY experience, and future-forward connectivity—all wrapped in a sleek, modern form factor ready for Windows® 11.

FEATURES:

AMD AM5 Socket Ready for AMD Ryzen™ 9000/8000/7000 Series Desktop Processors
Ultrafast Connectivity Wi-Fi 6E, M.2 PCIe 4.0, Realtek 2.5Gb Ethernet, USB 3.2 Gen 2 ports, front USB 3.2 Gen 1 Type-C®
ASUS Enhanced Memory Profile (AEMP) for enhanced DDR5 performance
ASUS Q-Design and EZ PC DIY for easily connecting and customizing your hardware
Comprehensive Cooling VRM heatsink, Passive chipset heatsink, hybrid fan headers and AiO pump header
Aura Sync RGB Lighting Onboard Addressable Gen 2 headers and Aura RGB header for RGB LED strips, easily synced with Aura Sync-capable hardware

SPECIFICATIONS:

Socket AM5
CPU Supports AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors
Chipset AMD B840 Chipset
DDR5 Memory Support DDR5 up to 7600+MT/s (OC) with Ryzen™9000 & 8000 & 7000 Series Processors, ECC and Non-ECC, Un-buffered Memory, supports AMD Extended Profiles for Overclocking (EXPO™), supports ASUS Enhanced Memory Profile (AEMP)
Memory Channel Dual
DIMM Slots 4
Max Memory (GB) 256
PCI-E 4.0 x16 1
PCI-E 3.0 x16 2
SATA 6G 4
M.2 Slot 3
LAN Realtek 2.5Gb Ethernet, ASUS LANGuard
Wireless and Bluetooth Wi-Fi 6E, 2x2 Wi-Fi 6E (802.11ax), Supports 2.4/5/6GHz frequency band, Bluetooth v5.3
USB Ports Rear 2 x USB 10Gbps ports (2 x Type-A)1 x USB 5Gbps port (1 x USB Type-C®)4 x USB 2.0 ports (4 x Type-A)
2 x USB 10Gbps ports (2 x Type-A)
1 x USB 5Gbps port (1 x USB Type-C®)
4 x USB 2.0 ports (4 x Type-A)
USB Ports Front 1 x USB 5Gbps connector (supports USB Type-C®)1 x USB 5Gbps header supports 2 additional USB 5Gbps ports2 x USB 2.0 headers support 4 additional USB 2.0 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
Audio ports (Rear) Realtek 7.1 Surround Sound High Definition Audio CODEC
HDMI 1
DisplayPort 2
DirectX 12
Form Factor M-ATX
Operating System Support for Windows® 11, Windows® 10 64-bit

WHAT'S IN THE BOX:

  • Asus PRIME B840M-A WIFI M-ATX Gaming Motherboard – Black x1
  • SATA 6Gb/s Cables x2
  • Asus Wi-Fi Q-Antenna x1
  • M.2 Rubber Package x1
  • Screw Packaging for M.2 SSD x2
  • Quick Start Guide x1
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40686204434

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Dick
Boise, US
★★★★★ 5
Bright!
Number of Items: 1
Small but powerful led light. Good deal for the money
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Reviewed in the United States on April 20, 2026
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Richard Jones
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★★★★★ 5
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Easy install , aimable ,removable if needed and rechargeable . What else would you need ? I recommend .
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Reviewed in the United States on April 25, 2026
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James Jonely
San Leandro, US
★★★★★ 5
Not satisfied
Number of Items: 1
Very disappointed, not sure if I just received the one bad one or if all are made cheaply. Did not even last a day and the orange cap that protects the usb charging port broke. Messaged seller on it being defective so we will see what comes of that. Update: seller responded and sending another one. The current one, while the orange end seemed defective the light itself is super bright. My son has a much larger one but I prefer this compact size and the brightness of it
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Reviewed in the United States on September 12, 2025
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Marion Hack
Carnegie, US
★★★★★ 3
Lights for Atv.
Number of Items: 1
It’s very flimsy but hasn’t fallen off the atv yet. We’ll see how it lights up once I take it at night. Straps are too short.
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Reviewed in the United States on January 15, 2026
M
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Michael
Carnegie, US
★★★★★ 5
The assortment was great for my 2012 Tacoma
Exact fit for my 2012 Tacoma headlight bulb retainer housing
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Reviewed in the United States on September 12, 2025

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