---
product_id: 340137046
title: "Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting"
brand: "asus"
price: "¥164690"
currency: JPY
in_stock: true
category: "Asus"
url: https://www.desertcart.jp/products/340137046-asus-prime-x299-a-ii-atx-motherboard-intel-x299-lga
store_origin: JP
region: Japan
---

# 12 IR3555 Power Stages for rock-solid power Aura Sync RGB for personalized lighting Triple M.2 slots for ultra-fast storage Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting

**Brand:** asus
**Price:** ¥164690
**Availability:** ✅ In Stock

## Summary

> ⚡ Power, speed, and style — build the ultimate workstation that commands attention.

## Quick Answers

- **What is this?** Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting by asus
- **How much does it cost?** ¥164690 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/340137046-asus-prime-x299-a-ii-atx-motherboard-intel-x299-lga)

## Best For

- asus enthusiasts

## Why This Product

- Trusted asus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Make It Yours:** ASUS-exclusive Aura Sync RGB lighting with addressable headers lets you customize your rig’s vibe to stand out in any workspace.
- • **Cool Under Pressure:** Advanced cooling with ultra-efficient heatsinks drops M.2 SSD temps by 20°C, preventing throttling during intense sessions.
- • **Speed Meets Storage:** Triple M.2 slots plus DDR4 4266 MHz support ensure lightning-fast data access and seamless workflow.
- • **Next-Gen Connectivity:** USB 3.2 Gen 2 Type-C and Intel LAN keep you connected with blazing transfer speeds and low latency.
- • **Power That Never Quits:** 12 IR3555 power stages with ProCool II connectors deliver unmatched stability for heavy multitasking and overclocking.

## Overview

The Asus Prime X299-A II is a high-performance ATX motherboard designed for Intel Core X-Series processors with LGA 2066 socket. Featuring 12 IR3555 power stages, DDR4 4266 MHz memory support, triple M.2 slots, USB 3.2 Gen 2 Type-C, Intel LAN, and customizable Aura Sync RGB lighting, it delivers robust power, ultra-fast storage, advanced connectivity, and superior cooling for professional-grade computing and overclocking.

## Description

Buy Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting online at low price in India on desertcart.in. Check out Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting reviews, ratings, features, specifications and browse more ASUS products online at best prices on desertcart.in.

## Features

- Intel x299 LGA 2066 socket: ready for the latest Intel Core X-Series processors to maximize connectivity and speed with up to three M.2 drives, USB 3.2 Gen 2, Intel VROC and Intel Optane Memory compatibility
- Robust power design: 12 IR3555 power stages, ProCool II connectors, alloy Chokes and ultra-durable capacitors for stable power delivery
- Comprehensive cooling solution: ultra-efficient heatsink reduces M.2 SSD temperatures by up to 20° C for unthrottled transfer speeds and enhanced reliability, an array of fan Headers, and options for water pump or AIO
- Next Gen connectivity: Intel Optane Memory Ready, Intel VROC support, Dual M.2 support, Multi-GPU support and USB 3.2 Gen Type-C
- Ai overclocking: quickly optimizes your CPU performance based on the CPU and cooler, achieving results that are extremely close to manual tuning by experts
- Unmatched Personalization ASUS-exclusive aura Sync RGB lighting, including RGB headers and addressable Gen 2 RGB headers
- Industry leading audio: high fidelity audio with crystal sound 3, DTS sound unbound for pristine, powerful audio
- Diy friendly: pre-mounted I/O shield, flexkey, Asus safe Slot, Asus Node connector and BIOS Flashback for a friendlier building experience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YD6SXF7 |
| Best Sellers Rank | #41,447 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #290 in Motherboards |
| Brand Name | ASUS |
| CPU Model | Core i9 |
| Chipset Type | Intel X299 |
| Compatible Devices | Personal Computer |
| Compatible Processors | lga 2066 |
| Country of Origin | China |
| Customer Reviews | 4.1 4.1 out of 5 stars (161) |
| DriveMemory Storage Capacity | 256 GB |
| Global Trade Identification Number | 00192876488591 |
| Graphics Card Interface | Integrated |
| Item Type Name | ASUS Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 power stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting |
| Item Weight | 2.05 kg |
| Main Power Connector Type | 24-Pin |
| Manufacturer | ASUS |
| Manufacturer Part Number | Prime X299- A II |
| Memory Clock Speed | 2133 MHz |
| Memory Slots Available | 8 |
| Model Name | Prime X299- A II |
| Model Number | Prime X299-A II |
| Number Of Ports | 3 |
| Number of Items | 1 |
| Platform | Windows 10 |
| Processor Socket | LGA 2066 |
| RAM Memory Technology | DDR4 |
| Ram Memory Maximum Size | 256 GB |
| S/PDIF Connector Type | Optical |
| System Bus Standard Supported | SATA 3 |
| Total SATA Ports | 6 |
| Total USB Ports | 8 |
| UPC | 192876488591 |
| USB 2.0 | 2 |
| Warranty Description | No Warranty |

## Product Details

- **Brand:** ASUS
- **CPU Socket:** LGA 2066
- **Compatible Devices:** Personal Computer
- **Compatible Processors:** lga 2066
- **RAM Memory Technology:** DDR4

## Images

![Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting - Image 1](https://m.media-amazon.com/images/I/513UV6Vwy2L.jpg)
![Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting - Image 2](https://m.media-amazon.com/images/I/51IBK4A8FEL.jpg)
![Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting - Image 3](https://m.media-amazon.com/images/I/51vo4hc39TL.jpg)
![Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting - Image 4](https://m.media-amazon.com/images/I/51ppiBt6IOL.jpg)
![Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting - Image 5](https://m.media-amazon.com/images/I/41NUkxTs5TL.jpg)

## Questions & Answers

**Q: I h i9-9940x. can i use m.2_1 and m.2_3? if it is possible, can anyone show me how to set the bios for this setup? thanks in advance.**
A: yes, the cpu can support, however, the bios setup is motherboard dependent.

**Q: Is one of the m.2 ports favored over the other. it will be used an m.2 ssd. thanks**
A: I have used the one further from the CPU for a Samsung Pro 1TB NVME SSD, and I'm getting full speed.

**Q: When was this motherboard released?**
A: 2019

**Q: Can you run an i9980xe on this board stock and can it handle overclocking?**
A: The board can definitely handle over locking. As to that specific processor, look up the motherboard on the ASUS web site. Under its support tab there is a complete list of compatible processors as well as ram modules.

## Frequently Bought Together

- Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting
- Intel Core i9-10900X Desktop Processor 10 Cores up to 4.7GHz Unlocked LGA2066 X299 Series 165W (BX8069510900X)
- ARCTIC MX-4 (incl. Spatula, 4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-17*