ASUS PRIME B840M-A-CSM Corporate Stable Model Motherboard

The ASUS PRIME B840M-A-CSM is a micro-ATX motherboard engineered for business environments requiring stable, long-term hardware solutions. Built on the AMD B840 chipset with AM5 socket support, this motherboard delivers reliable performance for AMD Ryzen 9000, 8000, and 7000 series processors while offering extended product lifecycle support through ASUS's Corporate Stable Model program.

Corporate-Grade Reliability and Management

Designed specifically for commercial deployments, the B840M-A-CSM provides up to 36-month product lifecycle support with 6-month end-of-life notices, allowing organizations adequate time for hardware transitions. Each motherboard includes ASUS Control Center Express, server-grade IT management software that enables remote monitoring, automated BIOS updates, and centralized endpoint management across your network infrastructure.

Advanced DDR5 Memory Performance

Four DDR5 DIMM slots support up to 256GB of memory with speeds reaching 7600+MT/s when overclocked. The motherboard features AMD EXPO technology and ASUS Enhanced Memory Profile (AEMP) for automatic optimization of memory modules, ensuring maximum performance from both entry-level and high-speed DDR5 kits. The six-layer PCB design with 8+2+1 phase power delivery provides stable power distribution for demanding workloads.

Comprehensive Storage and Connectivity

Three M.2 slots deliver flexible storage configurations, with two supporting PCIe 4.0 x4 (up to 64 Gbps) and one PCIe 3.0 x4 slot. Four SATA III ports provide additional storage expansion. Realtek 2.5Gb Ethernet ensures high-speed network connectivity with reduced CPU overhead, while multiple USB ports including front and rear USB 5Gbps Type-C connections offer versatile peripheral support.

Display and Expansion Options

Integrated graphics support includes dual DisplayPort outputs and one HDMI port for multi-monitor configurations. The PCIe 4.0 x16 slot with SafeSlot Core+ reinforcement securely accommodates modern graphics cards, while two additional PCIe 3.0 x1 slots provide expansion flexibility for additional hardware.

DIY-Friendly Features

BIOS FlashBack allows firmware updates without CPU or memory installation. The Q-LED Core display provides color-coded POST diagnostics for quick troubleshooting. Pre-mounted I/O shield, ASUS Fan Xpert 2+ software, and intuitive UEFI BIOS interface streamline system building and configuration. Three addressable Gen 2 RGB headers with Aura Sync support enable customizable lighting synchronization across compatible components.

AI-Ready Platform

Advanced AI PC-ready architecture provides the processing power and connectivity required for AI applications. ASUS AI Advisor software simplifies motherboard feature exploration and configuration, making advanced functionality accessible to all users.