General Information for Asus
ASUS PRIME X399-A, AMD, Socket TR4, AMD Ryzen, DDR4-SDRAM, DIMM, 2133,2400,2666,2800,3200,3333,3466,3600 MHzASUS Prime X399-A is the EATX 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, explore, and to push the boundaries, look no further than the Prime X399-A.
One-click overclock and cooling, done!
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.
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
Quickly discover tuning options and add preferred tools to the list.
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.
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.
Keep your SSD cooler
Prime X399-A has an ultra-efficient heatsink to reduce M.2 SSD temperatures by up to 20C and that means optimal storage performance and improved SSD longevity.
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.
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.
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.
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.
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.
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.
Separates analog/digital signal domains, significantly reducing multi-lateral interference.
Separate layer for left and right tracks
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 Japanese-made audio capacitors
Premium parts provide an immersive sound signature, with exceptional fidelity.
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.
AMD X399 chipset
The AMD X399 chipset delivers outstanding overclocking capabilities for the latest AMD SocketTR4 Ryzen Threadripper processors. It's optimized for multiple GPU configurations, including NVDIA SLI and AMD CrossFireX. It also provides two 10Gbps USB 3.1 ports and eight 6Gbps SATA ports for faster data retrieval.
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AMD X399, AMD SocketTR4, 8x DIMM DDR4, 4x PCIe 3.0 x16, 1x PCIe 2.0 x4, 1x PCIe 2.0 x1, M.2, U.2, USB 2.0/3.1, RJ-45, S/PDIF, EATX, 305x269 mm
ASUS PRIME X399-A. Processor manufacturer: AMD, Processor socket: Socket TR4, Compatible processor series: AMD Ryzen. Supported memory types: DDR4-SDRAM, Memory slots type: DIMM, Supported memory clock speeds: 2133,2400,2666,2800,3200,3333,3466,3600 MHz. Parallel processing technology support: 2-Way CrossFireX,2-Way SLI,3-Way CrossFireX,3-Way SLI,Quad-GPU CrossFireX,Quad-GPU SLI. Ethernet interface type: Gigabit Ethernet, LAN controller: Intel® I211-AT. Component for: PC, Motherboard form factor
Initial Release Date: 07/09/2017