Asus Prime B860M-A WIFI-CSM LGA1851 DDR5 Motherboard MATX

Discover the Asus Prime B860M-A WIFI-CSM LGA1851 DDR5 Motherboard MATX — a precision-engineered platform from ASUS that brings uncompromising performance, modern connectivity, and intelligent tuning to compact builds. Designed to unlock the full potential of the latest Intel® Core™ Ultra Processors (Series 2), this micro ATX motherboard blends a rock-solid power delivery system, next-generation memory support, and advanced connectivity to give gamers, creators, and AI-focused users the foundation they need to push boundaries. With thoughtful engineering, robust expansion options, and intuitive firmware and software controls, the PRIME B860M-A WIFI-CSM is tailored for builders who demand performance, stability, and future-ready versatility in a space-efficient 24.4 cm x 24.4 cm form factor.

Benefits

• Exceptional performance headroom: A reinforced power architecture and optimized VRM topology provide the stable, high-current delivery required for high-core-count Intel® CPUs—delivering smoother performance under heavy multitasking, rendering, and AI workloads.
• Future-ready memory and overclocking: DDR5 support with four DIMM slots and speeds up to 8666+ MT/s (OC) enables extreme memory bandwidth and responsiveness for demanding applications and multitasking scenarios.
• Compact, upgradeable platform: The micro ATX footprint balances small-game build efficiency with plentiful expansion—offering a premium set of features without sacrificing upgrade options.
• Comprehensive connectivity: Built-in WiFi, a fast Realtek 2.5Gb Ethernet port, multiple USB 3.2 Gen 2 ports including Type-C, and modern audio codecs ensure fast networking, flexible peripherals, and immersive sound out of the box.
• Storage and expandability for high-performance systems: Dual M.2 slots and four SATA 6Gb/s ports plus SATA RAID support enable fast NVMe storage, large-capacity arrays, and flexible storage architectures for both gaming and content production pipelines.
• Builder-friendly and reliable: PC Builder Rated and equipped with intuitive BIOS and software tools, this board makes system tuning, thermal management, and troubleshooting straightforward for DIY builders and integrators.

Key features

• Feature: Robust power delivery and CPU support

A precision 7+1+1+1 power stage layout featuring high-current MOSFETs rated for up to 80A each ensures consistent, efficient power to modern Intel® Core™ Ultra Processors (Series 2). This design prioritizes thermal headroom, voltage stability, and sustained performance under heavy multi-threaded loads, making the board ideal for gamers, creators, and AI workloads that demand reliability and sustained throughput.

• Feature: Advanced DDR5 memory performance

Four DDR5 DIMM slots support up to 256GB of Non‑ECC memory and aggressive overclocking profiles up to 8666+ MT/s (OC). With ASUS Enhanced Memory Profile III (AEMP III) and intelligent memory tuning, you get tighter timings, higher bandwidth, and more responsive application performance—perfect for memory-intensive tasks like content creation, simulation, and data processing.

• Feature: Cutting-edge expansion with PCIe 5.0 and PCIe 4.0

A full-length PCIe 5.0 x16 slot delivers next-generation GPU bandwidth for the latest graphics cards and accelerators. Additional expansion includes a PCIe 4.0 x16 slot (operating at x4 mode) and a PCIe 4.0 x1 slot, allowing flexible multi-card configurations, high-speed NVMe add-in cards, capture devices, and specialized expansion needs.

• Feature: High-speed storage and RAID flexibility

Two M.2 slots support ultra-fast NVMe SSDs for OS and scratch storage, while four SATA 6Gb/s ports offer ample room for additional drives. Flexible SATA RAID support (0/1/5/10) allows you to configure for maximum performance, redundancy, or a balance of both—ideal for workstation environments, content libraries, and fast boot configurations.

• Feature: Premium connectivity and immersive audio

Integrated WiFi and a dedicated Realtek 2.5Gb Ethernet port deliver low-latency wired and wireless networking for competitive gaming and heavy data transfers. Front-panel and rear USB 3.2 Gen 2 Type-C and Type-A ports provide fast peripheral and storage connectivity. Onboard Realtek 7.1 Surround Sound HD Audio ensures rich, detailed audio for games, streams, and media editing without needing an immediate audio upgrade.

Summary

The Asus Prime B860M-A WIFI-CSM is a finely tuned micro ATX motherboard that brings high-end features to compact builds. Engineered for the latest Intel® Core™ Ultra Processors, it offers robust power delivery, advanced DDR5 memory support, PCIe 5.0 expansion, comprehensive storage options, and modern connectivity—including integrated WiFi and 2.5Gb Ethernet—so you can build a versatile, high-performance system ready for gaming, content creation, and AI workloads. Backed by ASUS design expertise and PC Builder-rated convenience, the PRIME B860M-A WIFI-CSM is an exceptional choice for builders who want a powerful, future-ready foundation in a space-conscious form factor.

Manufacturer: ASUS

Model/MPN: PRIME B860M-A WIFI-CSM

Form factor: Micro ATX (24.4 cm x 24.4 cm)

Chipset / Socket: Intel® B860 / LGA 1851

Memory: 4 x DDR5, up to 256GB, up to 8666+ MT/s (OC)

Expansion: PCIe 5.0 x16, PCIe 4.0 x16 (x4), PCIe 4.0 x1

Storage: 2 x M.2, 4 x SATA 6Gb/s, SATA RAID 0/1/5/10

Networking: Realtek 2.5Gb Ethernet, onboard WiFi

Audio: Realtek 7.1 Surround Sound HD Audio

USB: USB 3.2 Gen 2 Type-C and Type-A

Build smarter, perform stronger, and prepare your system for tomorrow’s workloads with the Asus Prime B860M-A WIFI-CSM.