1 BIOS FlashBack™ button
2 Intel® Gb LAN
3 4 x USB 3.1 Gen 1
4
USB 3.1 Gen 2
TypeA/C Port
5 8 CH Audio with DTS Support
6
3 x PCIe 3.0
SLI & 3-Way CFX Support
8 DIGI+ Power Control
9 Intel® LGA 2066 Socket
10 DDR4 4133(O.C.) Support
11 PCIE 3.0 x4 M.2
12 AURA SYNC
13 Front USB 3.1 Gen 2 Connector
14 ASUS SafeSlot
15 8 x SATA 6Gb/s
16 M.2 Heatsink
17 Front USB 3.1 Gen 1
ASUS Prime X299-A is the ATX motherboard that's been expertly engineered for professional content creators and power users who work hard by day and play harder by night. This powerful, innovative board puts a friendly face on advanced enthusiast controls, enabling you to maximize performance, cooling and personalization with ease. So, if you live to create, to explore, to enjoy and to push the boundaries, look no further than Prime X299-A.
One click takes care of all that complex tuning. ASUS 5-Way Optimization makes your PC smart. It dynamically optimizes essential aspects of the system, providing overclocking and cooling profiles that are tailored for your rig.
An automated tuning utility that optimizes overclocking and cooling profiles for your unique system configuration.
Fans stay whisper-quiet for everyday computing, and deliver optimal airflow when the system is crunching through CPU or GPU-intensive tasks.
All-new stress test that allows users to optimize and overclock for CPU or memory-centric workloads.
TPU
EPU
Fan Xpert 4
Digi+ Power 
Turbo Core Unleash your PC's full performance with the ASUS AI Suite 3 utility. A TurboV Processing Unit (TPU) is the intelligence behind our automated system-tuning utility, offering the ability to fine-tune voltages, monitor system stats, and adjust overclock parameters for optimal performance.
With the Energy Processing Unit (EPU) you'll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode — a smart setting that creates an extreme energy-saving scenario by shutting down unused I/O controllers.
With Prime X299-A you have comprehensive control over fans, water pumps and even all-in-one (AIO) coolers, via either Fan Expert 4 or our award-winning UEFI. Whether you're cooling with air or water, Auto-Tuning mode intelligently configures all parameters with a single click. There's also an Extreme Quiet mode, which reduces all fan speeds to below the default minimum — keeping your system whisper-quiet when performing light tasks.
Digi+ delivers real-time control over voltage droop, switching frequency and power -efficiency settings, allowing you to fine-tune CPU voltage regulation for ultimate stability and performance.
Intel's latest processors feature per-core tuning, and the ASUS Turbo Core app makes use of this feature by enabling you to assign applications to specific processor cores, allowing you to prioritize compute power where it's needed most.
Prime X299-A features the most comprehensive cooling controls ever, configurable via Fan Xpert 4 or the UEFI BIOS.
Multiple temperature sources
Water pump+
AIO pump
4-pin PWM/DC fan
Fan Extension Card header:
Smart protection
Each header can be set to monitor and react to three user-configurable thermal sensors, for workload based cooling. All easily managed by Fan Xpert 4 or UEFI.
A dedicated header that can supply over 3A to high-performance PWM or DC water pumps.
A dedicated PWM/DC header for self-contained water-cooling setups.
Every onboard header supports auto-detection of PWM or DC fans.
Includes three additional DC or PWM fan headers, plus three thermal-probe headers.
A dedicated integrated circuit that protects each fan header from over-temperature and over-current.
The smoothest, slickest 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.
EZ Tuning Wizard Quickly apply a CPU overclock to improve system performance, or configure a RAID array for faster data retrieval and backups.
My Favorites Quickly discover tuning options and add preferred tools to the list.
Intuitive graphical fan control: Fine-tune individual fans simply by dragging a curve with the mouse.
EZ XMP: Improve your DRAM performance with a click.
SATA Information: Displays SATA port details so you can easily recognize drives.
Fast Clock Adjustment: Use mouse controls to change the time and date.
GPU POST: Provides recommendations for multi-VGA configurations and detailed information for select ASUS graphics cards.
Secure Erase: Restores your SSDs to factory-fresh condition.
Last Modified Log: Track last change and save preferred profiles onto a USB drive.
SATA Port Renaming: Rename SATA ports for easy identification.
With optimized trace paths for time-aligned signaling and minimal crosstalk, Third-generation ASUS T-Topology offers enhanced memory stability and compatibility, allowing support for memory speeds of DDR4-4133 MHz and beyond.
CPU : Intel LGA 2066 i9-7900X | Motherboard : Prime X299-A |
DRAM : G.Skill F4-3200C16Q-16GRKD | Power : Corsair AX1500i | Water-cooling : Corsair H115i
A dedicated base-clock generator that extends CPU and memory overclocking margins. This custom solution works in tandem with the TPU to enhance voltage and base-clock overclocking control, providing the flexibility to extract every ounce of performance from Intel® Core™ X-series processors.
With x4 PCI Express 3.0/2.0 bandwidth, M.2 supports up to 32Gbps data-transfer speeds. It is the perfect choice for an operating system or application drive, providing fast access to data.
Prime X299-A has an ultra-efficient heatsink to reduce M.2 SSD temperatures by up to 20°C — and that means optimal storage performance and improved SSD longevity.
Unleash the Prime X299-A Virtual RAID on CPU (VROC) feature with the addition of an ASUS Hyper M.2 X16 Card*, which allows you to attach up to four PCIe® 3.0 x16 M.2 drives — for a total bandwidth of up to 128Gbps. With VROC, you can utilize CPU PCIe lanes to configure a bootable RAID array, eliminating traditional DMI bottlenecks, so that storage transfers aren't held back by other traffic.
Intel Optane™ is a revolutionary non-volatile memory technology supported by Prime X299-A. Intel Optane memory modules accelerate attached storage to reduce boot and load times, so everything feels faster and more responsive.
Prime X299-A's front panel USB 3.1 connector is ready for next-gen PC cases and devices.
With backward-compatible USB 3.1 Gen 2 Type-A™ and reversible USB 3.1 Gen 2 Type-C™ ports, you'll experience ultimate connection flexibility and blazing data-transfer speeds of up to 10Gbps.
Prime X299-A offers support for ThunderboltEX 3 card, an Intel-certified Thunderbolt™ 3 add-on card enables breathtaking bi-directional speeds of up to 40Gbps through a single cable — up to 4X faster than other PC data-transfer protocols. Beyond sheer bandwidth, Thunderbolt 3 supports daisy-chaining up to six devices; utilizes a Type-C reversible connector for compatibility with the latest USB 3.1 Gen 2 Type-C devices; and supports the USB Power Delivery specification for fast, high-power charging of up to 36W.
*ThunderboltEX 3 Card available separately for purchase.
Prime X299-A features the latest Intel Ethernet. Intel's LAN has the advantage of reducing CPU overhead and offering exceptionally high TCP and UDP throughput for faster, smoother data transfer.
ASUS LANGuard is hardware-level networking protection that employs signal-coupling technology and premium anti-EMI surface-mounted capacitors to ensure a more reliable connection and better throughput.
Turbo LAN with cFosSpeed traffic-shaping technology allows you to configure application priority via an intuitive interface, and reduces network lag.
With support for both NVIDIA® SLI™ and AMD CrossFireX™ 2/3-WAY configurations, Prime X299-A motherboard enables multi-GPU setups so you can harness the full power of the latest graphics technologies to drive games at 4K and beyond.
SafeSlot* is the PCIe slot reinvented by ASUS and engineered to provide superior retention and shearing resistance. Manufactured in a single step using a new insert-molding process, SafeSlot integrates the slot with fortifying metal for an inherently stronger slot, which is then firmly anchored to the PCB through additional solder points.
Prime X299-A utilizes a unique audio codec designed in close collaboration with Realtek — the Realtek S1220A. It also features an unprecedented 120dB signal-to-noise ratio for the stereo line-out and a 113dB SNR for the line-in, providing pristine audio quality. Additionally, a new impedance-sensing circuit automatically adjusts gain to ensure the optimal volume range for your headphones.
DTS Headphone:XTM Surround sound, to go
Immersive 3D surround-sound technology provides incredible audio experiences.
Reduces power-input noise to ensure consistent performance.
Separates analog/digital signal domains, significantly reducing multi-lateral interference.
Ensures minimal crosstalk between audio paths.
Capable of driving high-impedance headphones, without rolling-off high or low frequencies.
Reduces start-up popping noise to all audio outputs.
Premium parts provide an immersive sound signature, with exceptional fidelity.
A well-tuned enthusiast system deserves a matching aesthetic. ASUS Aura offers full RGB lighting control with a variety of functional presets for the built-in RGB LEDs as well as strips connected to the onboard RGB headers.* And it can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware.
Static
Breathing
Strobing
Rainbow
Color Cycle
Comet
Flash &
Wave
Glowing
Starry
Music
CPU
*The Aura RGB-strip header supports 5050 RGB LED strips with a max power rating of 2A (12V). For maximum brightness, strip length should not exceed 2m.
** One extension cable is included. RGB LED strips are sold separately.
Dedicated 3D mounts on the motherboard makes fitting 3D-printed parts easy. Using the same screws as M.2 drives and standard motherboard mounting holes, you can easily add nameplates and cable covers.
M.2 fan holder A fan mount for M.2 drives to help prevent thermal throttling.
As system parts are visible in custom PC builds, make yours stand out from the competition with 3D-printed accessories.
Graphics card holder Prevent sag by providing support for heavy graphics cards.
2-Way SLI HB Bridge cover Clip the cover onto the SLI HB Bridge to add style to your build. Multiple form factors — EATX, ATX and mATX — are available.
Fan grill Make your cooling a little cooler.
Cable combs Keep cables organized with the multi-connector design. 3D design files are available for 24-pin, 8-pin, 8 + 6-pin, 6-pin and 4-pin PSU connectors.
Download Select the 3D source files you want to download.
Personalize Adjust size or shape, add text or change other attributes.
Print Use your own printer, or visit a local vendor or ASUS store with Shapeways.
Setup Easily assemble and fit your 3D-printed parts using M.2 nuts or existing case mounts.
Intel® Core™ X-series processors for LGA 2066 socket
Intel Core X-series processors (6-core and above): 4-channel (8-DIMM), 44/28 PCI Express 3.0/2.0 lanes.
Intel Core X-series processors (4 core): 2-channel (4-DIMM), 16 PCI Express 3.0/2.0 lanes.
Intel X299 chipset The Intel X299 chipset supports LGA 2066-socket Intel Core X-series processors. It provides improved performance by utilizing serial point-to-point links, allowing increased bandwidth and stability. Additionally, X299 provides a maximum 10 USB 3.1 Gen 1 ports, 8 SATA 6Gbps ports and 32Gbps M.2 support for faster data retrieval.
