ASUS PRIME X399-A AMD SocketTR4 EATX Motherboard with M.2 Heatsink, DDR4 3600MHz

Cooler by design
Prime X399-A features the most comprehensive cooling controls ever, configurable via Fan Xpert 4 or the UEFI BIOS:

Multiple temperature sources
Each header can be set to monitor and react to three thermal sensors and via Fan Xpert 4 you can even assign a sensor to monitor the temperature of supported ASUS graphics cards, for optimal cooling during GPU or CPU-intensive workloads.

Dual pump headers
A dedicated header that supplies over 3A for high-performance PWM or DC water pumps, plus a second dedicated header for AIOs.

Back I/O fan
A built-in fan attached to the main heatsink array that helps cool the CPU VRM.

4-Pin PWM/DC fan
Every onboard header supports auto-detection of PWM or DC fans.

ASUS fan extension card support
Includes three additional DC or PWM fan headers, plus three thermal-probe headers.

Smart protection
A dedicated integrated circuit that protects each fan header from over-temperature and over-current.

Media-acclaimed UEFI BIOS
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

My Favorites
Quickly discover tuning options and add preferred tools to the list.

EZ mode

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.

Advanced mode

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.

Make your memory go faster
Prime X399-A is engineered to support quad-channel memory kits rated up to a staggering DDR4 3600MHz, allowing you to get the best performance from the X399 platform. We've worked with all major DDR4 memory vendors to help ensure compatibility, so you're assured the best compatibility.

OC Design - ASUS Pro Clock Technology
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 Ryzen Threadripper processors.

Connect everything, ultra-fast

M.2 - Speed up with onboard M.2 up to 32Gbps
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.

M.2 heatsink - Keep your SSD cooler
Prime X399-A has an ultra-efficient heatsink to reduce M.2 SSD temperatures by up to 20 deg. C - and that means optimal storage performance and improved SSD longevity.

U.2 connector - Join the NVMe revolution
The revolutionary specification that lets your SSDs scream at top speed. Just attach your chosen drive to with plug-and-play ease to experience data-transfer speeds of up to 32Gbps - and free up a PCIe slot for another expansion card.

USB 3.1 Gen 2 front-panel connector

Future-proof connectivity
Prime X399-A's front panel USB 3.1 connector is ready for next-gen PC cases and devices.

USB 3.1 Gen 2 Type-A & Type-C

Ultimate-speed 10Gbps with USB 3.1 onboard
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.

Intel Ethernet

More throughput, less CPU usage
Prime X399-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.

LANGuard

Pumped-up throughput, 2.5x higher surge tolerance
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

Network-optimization software for customizable packet prioritization
Turbo LAN with cFos Speed traffic-shaping technology allows you to configure application priority via an intuitive interface and reduces network lag.

Multi-GPU support
With support for both NVIDIA SLI and AMD CrossFireX 2/3-WAY configurations, Prime X399-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

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 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.

Upgrade to unrivalled audio

Outstanding audio

Realtek codec and unique design features for pristine, powerful audio
Prime X399-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:X

Surround sound, to go
Immersive 3D surround-sound technology provides incredible audio experiences.

Crystal Sound 3

Flawless audio that makes you part of the game

Power pre-regulator
Reduces power-input noise to ensure consistent performance.

Audio shielding
Separates analog/digital signal domains, significantly reducing multi-lateral interference.

Separate layer for left and right tracks
Ensures minimal crosstalk between audio paths.

Integrated amplifier
Capable of driving high-impedance headphones, without rolling-off high or low frequencies.

De-pop circuit
Reduces start-up popping noise to all audio outputs.

Premium Japanese-made audio capacitors
Premium parts provide an immersive sound signature, with exceptional fidelity.

Make it your own - Aura Sync

Outshine your competition
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 header. And it can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware.

Exclusive 3D mount for easy installation

Make it your own
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.

Ready for AMD SocketTR4 Ryzen Threadripper
The ASUS Prime X399-A motherboard supports the latest AMD Ryzen Threadripper processors. Based on the innovative Zen core architecture, the high-performance Threadripper CPUs boast up to 16 cores. AMD SocketTR4 processors feature quad-channel DDR4 memory, 64 lanes of PCI Express 3.0 and native 5Gbps USB 3.0 for superb performance.