Asus PRIME B840M-A WIFI M-ATX Gaming Motherboard

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