ASUS Prime B840M-A WiFi CSM DDR5 Motherboard

ASUS Prime B840M-A WiFi CSM DDR5 Motherboard for High-Performance Desktop PCs

The ASUS Prime B840M-A WiFi CSM DDR5 motherboard provides enterprise-grade stability, advanced connectivity, and high-speed performance for modern AMD Ryzen desktops. Ideal for gaming, professional workloads, and home office PCs, it supports the latest DDR5 memory and built-in WiFi 6E.

Supports AMD Ryzen 7000/8000/9000 Series CPUs

Equipped with the AMD B840 chipset, this motherboard supports AMD Ryzen 7000, 8000, and 9000 Series Desktop Processors. Users benefit from smooth multitasking, high-speed processing, and next-generation computing performance.

Dual-Channel DDR5 Memory with High Overclocking Potential

Featuring 4 DIMM slots, the Prime B840M-A WiFi CSM supports up to 256GB of DDR5 memory at speeds up to 7600+ MT/s (OC) with EXPO and ASUS AEMP support. This delivers ultra-fast data access, smooth multitasking, and enhanced productivity.

Modern Connectivity and Enterprise Features

This Micro-ATX motherboard includes PCIe 5.0 and PCIe 3.0 expansion slots, 3 M.2 NVMe storage slots, 4 SATA 6Gb/s ports, USB 10Gbps & 5Gbps ports, HDMI and DisplayPort outputs, WiFi 6E, Bluetooth 5.3, and a 2.5Gb Ethernet port. Corporate Stable Model (CSM) ensures long-term reliability. Aura Sync RGB, M.2 and VRM heatsinks, and ASUS 5X Protection III guarantee durability and advanced cooling.

• Brand: ASUS
• Series: Prime
• Model: B840M-A WiFi CSM
• Form Factor: Micro-ATX (9.6″ x 9.6″)
• Chipset: AMD B840
• CPU Socket: AM5
• CPU Support: AMD Ryzen 7000/8000/9000 Series
• Memory Type: DDR5
• Memory Slots: 4
• Max Memory Capacity: 256GB
• Memory Speed: Up to 7600+ MT/s (OC), ECC & Non-ECC
• Expansion Slots: 1× PCIe 5.0 x16, 2× PCIe 3.0 x16 (x1 mode)
• Storage: 3× M.2 Slots, 4× SATA 6Gb/s Ports
• RAID Support: RAID 0/1/10 (Ryzen 7000 & 9000), RAID 0/1/5/10 (Ryzen 9000), RAID 0/1 (Ryzen 8000)
• Graphics Output: 2× DisplayPort, 1× HDMI 2.1
• USB Ports: Rear – 2× USB 10Gbps Type-A, 1× USB 5Gbps Type-C, 4× USB 2.0; Front – 1× USB 5Gbps Type-C connector, 1× USB 5Gbps header (2 additional ports), 2× USB 2.0 headers (4 additional ports)
• LAN: Realtek 2.5Gb Ethernet, ASUS LANGuard
• Wireless: WiFi 6E, 2×2 802.11ax, Bluetooth v5.3
• Audio: Realtek 7.1 Surround Sound HD Audio, Audio Shielding, Premium Audio Capacitors
• Special Features: ASUS 5X Protection III, Aura Sync, M.2 & VRM Heatsinks, Q-Design, BIOS FlashBack™, EZ DIY, Armoury Crate, Fan Xpert 2+, ASUS MyHotkey, ASUS CrashFree BIOS 3
• Accessories: 2× SATA 6Gb/s cables, WiFi Q-Antenna, M.2 rubber package, M.2 screw packages, ACC Express Activation Key, Quick Start Guide
• Operating System: Windows 11, Windows 10 64-bit