ASUS PRIME B840M-A WIFI - Advanced AI PC-Ready AM5 Motherboard

The ASUS PRIME B840M-A WIFI is a micro-ATX motherboard engineered to unleash the full potential of AMD Ryzen 9000, 8000, and 7000 series processors. Built on the AMD B840 chipset with AM5 socket support, this motherboard delivers performance optimizations through intuitive software and firmware features for demanding AI applications and everyday computing tasks.

DDR5 Memory and Storage Performance

Equipped with four DDR5 DIMM slots supporting speeds up to 7600+MT/s (OC) and a maximum capacity of 256GB, this motherboard maximizes memory performance with AMD EXPO technology and ASUS Enhanced Memory Profile (AEMP). The board features three M.2 slots—two supporting PCIe 4.0 x4 with data-transfer speeds up to 64 Gbps, and one PCIe 3.0 x4 slot—plus four SATA III ports for comprehensive storage expansion.

Robust Power Design and Cooling

The PRIME B840M-A WIFI features an 8+2+1 phase power design with discrete MOSFETs and a six-layer PCB for enhanced stability. Multiple onboard heatsinks and hybrid fan headers ensure your system remains cool under intense workloads. ASUS Fan Xpert 2+ software provides comprehensive fan control with Auto-Tuning and Extreme Quiet modes for optimal thermal management.

Connectivity and Expansion

Built-in Wi-Fi 6E technology leverages the 6 GHz band for ultrafast wireless speeds with improved capacity. Realtek 2.5Gb Ethernet delivers high-throughput wired networking. The motherboard includes one PCIe 4.0 x16 slot for graphics cards with SafeSlot Core+ reinforcement, plus two PCIe 3.0 x1 slots. Display outputs include dual DisplayPort and HDMI for integrated graphics support.

USB and I/O Configuration

Rear I/O features two USB 10Gbps Type-A ports, one USB 5Gbps Type-C port, and four USB 2.0 ports. Front panel connectivity includes USB 5Gbps Type-C and additional USB ports for flexible device connections. The motherboard supports both rear and front USB Type-C connectivity at 5Gbps speeds.

DIY-Friendly Features

Q-Antenna provides snap-in WiFi antenna installation, while Q-LED Core displays color-coded POST diagnostics. BIOS FlashBack enables CPU-less BIOS updates via USB. The pre-mounted I/O shield simplifies installation. Three addressable Gen 2 RGB headers with Aura Sync support allow complete lighting customization across compatible devices.

Software Suite

ASUS AI Advisor simplifies motherboard feature exploration. The intuitive UEFI BIOS offers configuration options for beginners and advanced users. ASUS GlideX enables seamless screen sharing across devices, while DriverHub simplifies driver management. Armoury Crate provides centralized control for RGB lighting and ASUS devices.

Compatible with AMD Ryzen 9000, 8000, and 7000 series processors, the PRIME B840M-A WIFI delivers the performance foundation for gaming systems and content creation workstations with PCIe 4.0 support, dual-channel DDR5 memory, and comprehensive connectivity options.