ASUS PRIME X299-A II

Overview

The ASUS PRIME X299-A II is an ATX motherboard designed for Intel Core X-series processors using the LGA 2066 socket and Intel X299 chipset. It supports up to 256 GB of DDR4 memory at speeds up to 4266 MHz, making it well suited for demanding tasks like 3D rendering, high-resolution video editing, and scientific simulations. This motherboard offers robust power delivery and advanced storage options, providing a reliable foundation for high-performance workstations and enthusiast builds.

Key features

• Supports Intel Core X-series processors for powerful computing performance
• Memory capacity up to 256 GB DDR4 at 4266 MHz to handle large projects and multitasking
• Two M.2 slots with integrated heatsinks to maintain SSD performance during extended use
• USB 3.2 Gen 2 Type-C port for fast external data transfers and backups
• 12 IR3555 power stages deliver stable and efficient power for intensive workloads
• Compatibility with Intel Optane memory and VROC for flexible and high-speed storage configurations
• Aura Sync RGB lighting with headers to customize and synchronize system illumination
• Multiple fan and AIO pump headers to support advanced cooling setups and maintain optimal temperatures
• Pre-mounted I/O shield simplifies installation and protects motherboard connectors
• ATX form factor ensures compatibility with a wide range of PC cases and build styles

Key specs

• Socket: LGA 2066
• Chipset: Intel X299
• Memory: Up to 256 GB DDR4, 4266 MHz (qualified speeds)
• Storage: Two M.2 slots with integrated heatsinks
• USB ports: USB 3.2 Gen 2 Type-C on rear panel
• Power delivery: 12 IR3555 power stages
• Form factor: ATX

Connectivity and compatibility

This motherboard offers a modern set of connectivity options to support a variety of peripherals and storage devices. The USB 3.2 Gen 2 Type-C port enables rapid data transfers for external drives, while multiple fan and AIO pump headers allow for precise cooling control. The pre-mounted I/O shield protects connectors during installation and ensures a secure fit in compatible ATX cases.

Performance and reliability

With 12 IR3555 power stages, the motherboard provides stable and efficient power delivery, which is essential for maintaining system stability under heavy workloads. The integrated heatsinks on the M.2 slots help keep SSDs cool, preserving their performance during long file transfers or intensive project loads. Support for Intel Optane memory and VROC adds flexibility for users who require tiered storage or RAID configurations.

Ideal uses and environments

This motherboard is a strong choice for professionals and enthusiasts who need a reliable platform for resource-intensive applications such as 3D rendering, video editing, and scientific computing. It also fits well in custom gaming rigs or streaming setups that benefit from high memory capacity and fast storage. The Aura Sync RGB lighting allows users to create a cohesive aesthetic for studio or gaming environments.

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.

Learn more

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.

Learn more

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.

Learn more