ASUS PRIME B860M-A WIFI-CSM

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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