ASUS PRIME B860M-A WIFI-CSM LGA 1851 M-ATX Motherboard

Overview

The ASUS PRIME B860M-A WIFI-CSM is a micro ATX motherboard designed to support Intel Core Ultra series 2 processors via the LGA 1851 socket. It offers a compact footprint of 9.6 inches square, making it suitable for smaller cases while still providing extensive connectivity and expansion options. With support for up to 192 GB of DDR5 memory running at speeds up to 8400 MT/s, this board handles demanding tasks like high-resolution video editing and 3D rendering with ease. It also features dual M.2 slots for PCIe 5.0 and PCIe 4.0 SSDs, ensuring fast storage performance alongside four SATA ports for additional drives.

Key features

• Supports the latest Intel Core Ultra series 2 processors for powerful computing performance
• Compact micro ATX form factor fits well in space-conscious builds without sacrificing expandability
• Dual M.2 slots allow pairing of ultra-fast PCIe 5.0 and PCIe 4.0 SSDs for optimized storage configurations
• Four SATA ports provide flexibility for adding larger hard drives or legacy SSDs
• DDR5 memory support up to 192 GB and 8400 MT/s enables smooth multitasking and demanding workloads
• PCIe 5.0 x16 slot ready to accommodate high-end graphics cards for gaming or professional graphics work
• Integrated Wi-Fi 6E and Bluetooth 5.3 offer fast and reliable wireless connectivity for cable-free setups
• 2.5 Gigabit Ethernet port ensures low-latency and high-throughput wired networking for gaming and large data transfers
• Rear USB-C port supports 20 Gbps transfer speeds, ideal for fast external storage and docking stations
• Realtek 7.1-channel audio delivers clear and immersive sound for gaming, media, and voice calls
• HDMI and DisplayPort outputs support 4K resolution at 60 Hz, suitable for office workstations and media centers
• ASUS Q-Design features like a pre-installed I/O shield, tool-less M.2 latches, and quick-release PCIe clips simplify installation and maintenance

Key specs

• Socket: LGA 1851
• Form factor: Micro ATX (9.6 in x 9.6 in)
• Memory: Up to 192 GB DDR5, 8400 MT/s
• Storage: 2 x M.2 slots (PCIe 5.0 and PCIe 4.0), 4 x SATA ports
• Expansion slots: 1 x PCIe 5.0 x16
• Networking: Wi-Fi 6E, Bluetooth 5.3, 2.5 Gigabit Ethernet
• USB ports: Rear USB-C port with 20 Gbps transfer speed
• Video outputs: HDMI and DisplayPort supporting up to 4K at 60 Hz
• Audio: Realtek 7.1-channel surround sound

Connectivity and compatibility

This motherboard offers a versatile range of connectivity options to support modern peripherals and networks. The integrated Wi-Fi 6E and Bluetooth 5.3 provide fast wireless connections for devices like keyboards, mice, and headsets without cluttering your workspace with cables. The 2.5 Gigabit Ethernet port is ideal for users who require stable and high-speed wired connections, such as competitive gamers or professionals transferring large files. The rear USB-C port supports high-speed data transfers, making it convenient for connecting external drives or docking stations. Video outputs include HDMI and DisplayPort, both capable of driving 4K displays at 60 Hz, which suits office setups and media playback environments.

Installation and setup

ASUS has designed this motherboard with builder convenience in mind. The pre-installed I/O shield reduces installation time and prevents damage during assembly. Tool-less M.2 latches allow quick and secure installation of SSDs without the need for screws, while quick-release PCIe clips make adding or removing expansion cards straightforward. Multiple fan headers and built-in temperature sensors help maintain optimal cooling and system stability, which is especially important in compact cases where airflow can be limited.

Ideal uses and environments

The PRIME B860M-A WIFI-CSM is well suited to users who need a balance of performance and compactness. It works well in small gaming rigs that require support for the latest GPUs and fast storage, as well as in content creation workstations where high memory capacity and fast data access are essential. Its networking capabilities and 4K video support also make it a strong choice for home offices or media centers. Additionally, the board’s features accommodate home servers or development machines that benefit from reliable connectivity and expandability in a smaller footprint.