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ASUS PRIME X299-A II LGA2066 ATX Motherboard

The ASUS PRIME X299-A II motherboard supports Intel’s latest Core X-series processor family for unparalleled speed and performance, ideal for gamers and content creators who want nothing but the very best!


  1. Socket LGA2066 ATX motherboard with Intel X299 chipset
  2. PCIe Gen3/Gen2, 2x M.2 ports, up to 48 PCIe lanes
  3. 8x DDR4 DIMM sockets (max. 256GB)
  4. 3x PCIe x16, and 2x PCIe x1 slots
  5. 6x USB 3.2 Gen 2 (1x Type-C), 2x USB 2.0/, audio with optical out and LAN

The Prime X299-A II caters to users with serious pursuits: Those who prefer to put their high-core-count processors to more productive use. This high-end desktop board combines cutting-edge performance with our signature features, including an enhanced VRM tailored for running the CPU performance at stock speeds, intuitive cooling control, next-gen connectivity, and extensive customisation.

Intel’s high-end desktop platform raises the stakes with updated Intel Core X-Series Processors that boast cores, cache, and bandwidth. The Prime X299-A II is ready for the additional processing power that plows through CPU-intensive tasks, and the extra bandwidth allows you to add more GPUs and NVMe SSDs to accelerate a wide range of work.

Robust Power Design

The LGA2066 socket is compatible with Intel Core X-Series Processors with up to 18 cores, over 44 PCI Express lanes, and 165-watt thermal design power (TDP). Those specs require serious power, so the Prime X299-A II is equipped with an enhanced power solution that includes 12 power stages that line up neatly along the top edge of the PCB.

Cool to the core

Effective cooling is extremely important, even at stock speeds. That is why the Prime X299-A II allows consolidated cooling control of the entire system, even for the most hardcore rigs. It comes equipped with onboard heatsinks, an array of fan headers, and options for water pump or AIO headers.

M.2 Heatsinks

Two M.2 slots are covered by heatsinks to combat temperature-induced throttling that can affect performance during heavy, sustained storage loads.

Little things make a big difference

ASUS pay careful attention to all the little details that improve your overall experience, from integrating a flashing utility directly into the UEFI to simplifying firmware updates or displaying your system vital signs. Prime X299-A II provides the tools you need to personalise your build and stay on top of things.

Pre-mounted I/O Shield

Form meets function in the pre-mounted I/O shield that ASUS pioneered with the ROG series. Now available on Prime X299-A II, this feature streamlines the installation process for budding builders and savvy enthusiasts alike.

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