The ASUS Prime B840M-A WiFi-CSM is a feature-rich Micro-ATX motherboard built for AMD Ryzen 7000, Ryzen 8000G, and Ryzen 9000 Series processors using the latest AM5 socket. Designed for business users, professionals, content creators, and PC enthusiasts, it combines dependable performance, AI-ready features, fast DDR5 memory support, comprehensive connectivity, and ASUS Commercial Stable Model (CSM) reliability for long-term deployment.
Powered by the AMD B840 chipset, the motherboard features a robust digital power design with premium components to provide stable and efficient power delivery for modern Ryzen processors. ASUS engineering ensures excellent reliability, making it suitable for both professional workstations and high-performance desktop systems.
Supporting up to 256GB of DDR5 memory across four DIMM slots, the motherboard enables high-speed memory performance with support for AMD EXPO™ memory profiles, allowing users to optimize compatible DDR5 memory with a single BIOS setting.
The motherboard includes a reinforced PCIe 4.0 x16 slot for modern graphics cards, delivering high-bandwidth performance for gaming, content creation, AI acceleration, and professional graphics applications.
Storage capabilities include three M.2 PCIe 4.0 slots for ultra-fast NVMe SSDs along with four SATA 6Gb/s ports, providing excellent flexibility for high-speed storage, large game libraries, and business data.
Networking features include integrated Wi-Fi 6E, Bluetooth, and Realtek 2.5 Gigabit Ethernet, offering fast, reliable wired and wireless connectivity for business environments, online collaboration, cloud computing, and multimedia streaming.
Designed with ASUS AI-ready technologies, the motherboard incorporates intelligent system optimization, efficient cooling management, and user-friendly tuning tools. Comprehensive thermal solutions include VRM heatsinks, M.2 heatsinks, hybrid fan headers, and Fan Xpert controls to maintain stable performance during demanding workloads.
Connectivity includes USB 5Gbps Type-C, USB Type-A ports, DisplayPort, HDMI, high-definition audio, and multiple internal expansion headers. BIOS FlashBack™ allows easy BIOS updates without installing a processor, while Aura Sync RGB support enables synchronized lighting across compatible ASUS components.
As part of the ASUS Corporate Stable Model (CSM) program, the Prime B840M-A WiFi-CSM offers long product lifecycle support and enhanced business reliability, making it an excellent choice for commercial deployments, professional workstations, and modern AMD desktop builds.
