SKU: 49455716324

Asus PRIME B840M-A WIFI M-ATX Gaming Motherboard

Sale price$2069.55 Regular price$2299.50
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

Asus PRIME B840M-A WIFI M-ATX Gaming 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)
  • USB Ports Front_
    • 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: 49455716324

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A
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Ashkan Shahinfar
Louisville, US
★★★★★ 3
Cute tall shelves but not depth enough!
These are nice, but although they aren't depth enough from the wall. They are no bigger than 2.5-3 inches depth. If you have photos or any other narrow items, you'll be perfectly happy. But for books they are not good at all. Unfortunately I returned them.
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Reviewed in the United States on July 21, 2025
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Brian
San Leandro, US
★★★★★ 3
Misinformed dimensions
This product misinformed me of size. It’s 47.235” in length not 48” as advertised. This is just another means of manufacture cheating customers with false information. I did not return as I was just moving into home. I was also in a hurry to finish the installation since I bought three of these not knowing the truth. You can make your own choice but I needed 48” and paid for 48” and got shorted. I used the shipping box to make an template to install brackets that manufacture did not provide.
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Reviewed in the United States on October 4, 2025
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Angela Salinas
Lexington, US
★★★★★ 1
Terrible for the money
I purchased 2 sets…for the money I highly suggest going to an actual store to purchase…very low quality and looks horrible…I don’t want a replacement which was all that was offered…not happy
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Reviewed in the United States on February 16, 2026
A
Verified Purchase
Amber
Dallas, US
★★★★★ 3
One out of the four shelves was badly bowed
Exactly what I was looking for but the reason for only three stars is thatone out of the four shelves is extremely bowed, but I only needed three so I just kept them. The quality on the other three is good they are a lightweight wood and anchored to the wall. Well, they seem pretty solid.
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Reviewed in the United States on January 3, 2026
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Belleville, US
★★★★★ 5
Will buy again
Color: Walnut, Size: 2 Pack
Great color, hardwear was easy to install, quality great, very stable, all in great fit great size and love the look
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