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Home > > > [PRIME X299-A II]



Product Details:


Image may differ from the actual product of model# PRIME X299-A II
Asus Prime X299-A II Desktop Motherboard - Intel X299 Chipset - Socket R4 LGA-2066 - Intel Optane Memory Ready - ATX - 256 GB DDR4 SDRAM Maximum RAM - UDIMM, DIMM - 8 x Memory Slots - Gigabit Ethernet - 8 x SATA Interfaces
SKU#: 6KF516
Model#: PRIME X299-A II

UPC#: 00192876488591
MSRP: $349.00

    Our Price: $368.75
    Availability:   In Stock


General Information:

  Manufacturer: ASUS Computer International
  Manufacturer Part Number: PRIME X299-A II
  Manufacturer Website Address:
  Brand Name: Asus
  Product Line: Prime
  Product Model: X299-A II
  Product Name: Prime X299-A II Desktop Motherboard
  Marketing Information:

Intel ATX motherboard LGA 2066 for Intel Core X-series processors, with AI Overclocking, 12 IR3555 power stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C and Aura Sync RGB lighting

  • Intel LGA 2066 socket: Ready for the latest Intel® Core™ X-series processors
  • AI Overclocking: Quickly optimizes your CPU performance based on the CPU and cooler, achieving results that are extremely close to manual tuning by experts
  • Robust power design: 12 IR3555 power stages, ProCool II connectors, alloy chokes and ultra-durable capacitors for stable power delivery
  • M.2 heatsink: Ultra-efficient heatsink reduces M.2 SSD temperatures by up to 20° C for unthrottled transfer speeds and enhanced reliability
  • Next-gen connectivity: Intel Optane memory ready, Intel® VROC support, dual M.2 support, and USB 3.2 Gen Type-C™


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 customization.

Get the most out of all your cores

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 LGA 2066 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.

ProCool II connector

ProCool II connectors ensure a snug and reliable connection to the EPS 12V power lines. The second-generation features upgrades of metal amour and solid pins for better heat dissipation, as well as a warning LED-display with a BIOS POST message to indicate an improper connection.


Prime X299-A II VRM is comprised of 12 IR3555 PowIRstages®, each rated to handle 60 amps

Microfine Alloy choke

Each PowIRstage is accompanied by a high-permeability alloy-core choke rated to handle 45 amps.

Make your memory go faster

The X299 platform delivers ample bandwidth on multiple fronts. Its quad-channel memory controller supports up to 256 GB of DDR4 memory across eight slots. With optimized trace layout, the Prime X299-A II can hit memory speeds up to DDR4 4266 MHz or beyond.

Multi-GPU support

Fully loaded takes on a new meaning when you have over 44 PCI Express lanes stemming from the CPU. Those lanes can be split in an x16/x16/x8 configuration spanning the board's trio of PCIe x16 slots, allowing you to load up on GPUs to accelerate an increasingly diverse array of work.

M.2Achieve speed with onboard M.2

Professional applications require fast solid-state storage, which is why the Prime X299-A II is equipped with three M.2 slots that are compatible with the latest NVMe SSDs. All slots support longer 110 mm drives, and they can be configured into bootable RAID arrays connected directly to the CPU via Intel VROC technology.

  Product Type: Desktop Motherboard

Processor & Chipset:

  Chipset Manufacturer: Intel
  Chipset Model: X299
  Total Processor Supported: 1
  Processor Socket: Socket R4 LGA-2066
  Processor Supported: Core X-Series
  Multi GPU Supported: CrossFireX
  Multi GPU Supported: SLI


  Number of Memory Slots: 8
  Memory Form Factor: UDIMM
  Memory Form Factor: DIMM
  Maximum Memory Supported: 256 GB
  Memory Speed Supported: 4266 MHz
  Memory Speed Supported: 4133 MHz
  Memory Speed Supported: 4000 MHz
  Memory Speed Supported: 3866 MHz
  Memory Speed Supported: 3800 MHz
  Memory Speed Supported: 3733 MHz
  Memory Speed Supported: 3600 MHz
  Memory Speed Supported: 3466 MHz
  Memory Speed Supported: 3400 MHz
  Memory Speed Supported: 3333 MHz
  Memory Speed Supported: 3300 MHz
  Memory Speed Supported: 3200 MHz
  Memory Speed Supported: 3000 MHz
  Memory Speed Supported: 2933 MHz
  Memory Speed Supported: 2800 MHz
  Memory Speed Supported: 2400 MHz
  Memory Speed Supported: 2133 MHz
  Memory Speed Supported: 2666 MHz
  Memory Technology: DDR4 SDRAM
  Intel Optane Memory Ready: Yes

I/O Controller:

  Controller Type: Serial ATA/600
  Intel VROC: Yes
  Intel RST: Yes
  Intel RSTe: Yes
  RAID Supported: Yes
  RAID Levels: 10
  RAID Levels: 5
  RAID Levels: 1
  RAID Levels: 0


  Onboard Video: No


  Audio Channels: 7.1

Network & Communication:

  Gigabit Ethernet: Yes

I/O Expansions:

  Number of Total Expansion Slots: 5
  Total Number of PCI Express Slots: 5
  Number of PCI Express x1 Slots: 2
  Number of PCI Express x16 Slots: 3


  Total Number of USB Ports: 8
  Number of USB 2.0 Ports: 2
  Number of USB 3.2 Ports: 6
  S/PDIF: Yes

Onboard Interfaces:

  Number of SATA Interfaces: 8
  Number of M.2 Interfaces: 3
  Total Number of Onboard USB Ports: 9
  Number of Onboard USB 2.0 Ports: 4
  Number of Onboard USB 3.2 Ports: 5

Physical Characteristics:

  Form Factor: ATX
  Width: 12"
  Depth: 9.6"


  Package Contents:
  • Prime X299-A II Desktop Motherboard
  • User's Manual
  • 1 x Vertical M.2 Bracket Set
  • 1 x ASUS Fan Holder
  • 4 x SATA 6Gb/s cable(s)
  • 2 x M.2 Screw Package
  • 1 x Supporting DVD
  • 1 x Q-Connector
  • 1 x Extension Cable for RGB strips (80 cm)
  • 1 x Extension cable for Addressable LED
  Environmentally Friendly: Yes
  Environmental Certification: RoHS
  Country of Origin: China


  Limited Warranty: 3 Year
 PRIME X299-A II Image Gallery:



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