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Non returnable under our Approval Guarantee, once installed or connected. Your statutory rights are not affected. See Returns section in our Help pages for more information.

  • Product Description
  • Product Features
  • Technical Specification
  • Customer Reviews
  • Questions and Answers

MPN: X99-A II EAN: 4712900399141

Asus X99-A II Motherboard

Perfect for the serious gamer and PC user, this motherboard is designed to break performance barriers.

The ASUS OC Socket utilizes extra pins for improved performance and enhanced stability, for a an all-round more reliable performance even when you're pushing your system to th emax. 

The OC Socket is 100% compatible with all LGA 2011-v3 CPUs, ensuring the ideal combination of overclocking performance and compatibility.

Key Features:

  • ASUS Aura - Features controllable RGB on-board lighting
  • Strengthened PCIe slot utilizes a new insert-moulding process 
  • 5-Way Optimization 
  • Fan Xpert 4 - Elevates customized cooling to new heights 
  • Next-gen connectivity - Supreme flexibility with on-board U.2 / M.2 slots
  • 3x3 802.11ac Wi-Fi, USB 3.1 
  • Type-C and ThunderboltEX 3 add-on card.
  • Computing Accessory Type: PC Accessories
  • Depth: 305 MM
  • Height: 60 MM
  • Width: 244 MM
  • Wifi Enabled: Y

Product Features

  • Make your memory go faster
    Drive your memory frequencies to 3333 MHz and beyond! ASUS T-topology circuit design provides a superb memory-overclocking capability to unleash the full power of DDR4 by minimizing coupling noise and signal reflection. With innovative equidistant memory channels, it delivers balanced control and powerful overclocking compatibility. ASUS works with almost every DDR4 memory vendor to ensure a great compatibility.
  • One click overclock and cooling, done
    One click takes care of all that complex tuning. Your PC is smart with ASUS 5-way optimization. It dynamically optimizes essential aspects of your system based on real-time use - so you get CPU performance, everyday energy savings, stable digital power, cool and quiet fans and now even networking and audio settings that are tailored for the apps that you are using. In short, 5-way optimization ensures that your PC is perfect for gaming, entertainment, productivity or just about anything else!
  • Flexible cooling controls for air and liquid
    The ASUS X99 motherboards feature enhanced cooling capability to date, controllable from both Fan Xpert 4 and UEFI.
  • Media-acclaimed UEFI BIOS
    The smooth and slick mouse-controlled graphical BIOS has been improved to make it even more appealing. Whether you're a PC novice or a seasoned overclocker, the EZ and Advanced Modes help you find your way, quickly and easily.
  • AURA lighting control
    A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura offers full RGB control with a variety of functional presets for both built-in RGB LEDs.
  • Protect your graphics card investment
    SafeSlot is the PCIe slot reinvented by ASUS and engineered to provide superior retention and shearing resistance. Manufactured in a single step using an injection-molding process that integrates the slot with the fortifying metal for an inherently stronger slot, which is then firmly anchored to the PCB through additional solder points.
  • More throughput, less CPU usage and great gaming experiences
    X99-E features the Intel Ethernet for faster, smoother gaming. Intel's LAN has the serious double advantage of reducing CPU overhead and offering exceptionally high TCP and UDP throughput. This significantly reduces the processor's workload, so there's more power for your game and your gameplay!

Technical Specification

Product DescriptionASUS X99-A II - motherboard - ATX - LGA2011-v3 Socket - X99
Product TypeMotherboard - ATX
Chipset TypeIntel X99 Express
Processor Socket1 x LGA2011-v3 Socket
Compatible ProcessorsCore i7 Extreme Edition, Core i7
Max RAM Size128 GB
RAM Supported8 DIMM slots - DDR4
Storage Ports4 x SATA-600 (RAID), 4 x SATA-600, 1 x SATA Express port, 1 x M.2, 1 x U.2 port
USB / FireWire Ports1 x USB-C + 1 x USB 3.1 + 4 x USB 3.0 + 4 x USB 2.0 + ( 4 x USB 3.0 + 4 x USB 2.0 via headers )
AudioHD Audio (8-channel)
LANGigabit Ethernet