ASUS Prime X299-A II LGA 2066 Intel X299 SATA 6Gb/s ATX Intel Motherboard


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ASUS Prime X299-A II LGA 2066 Intel X299 SATA 6Gb/s ATX Intel Motherboard

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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™

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1. 2 * USB 2.0

2. Intel® Gb Ethernet

3. 4 * USB 3.2 Gen 1

4. 2 * USB 3.2 Gen2
(1*TypeC™, 1* Type A)

5. USB BIOS FlashBack™

6. 8-Ch Audio

7. 3 x PCI Express 3.0
● 3 way/2 way SLI & CFX Support
● ASUS SafeSlot

8. M.2 22110 PCIE x4 mode
from CPU
9. Crystal Sound 3
● Realtek® S1220A Codec
● Power pre-regulator
● De-pop circuit
● Audio Shielding
● Premium Japanese
Audio Capacitors
● Dedicated Audio
PCB Layers

10. 2 * 8-pin ProCool II connectors

11. 12 IR3555 Power stages

12. DDR4 4266+(O.C.)

13. LGA 2066 Socket for Intel Core X-series

14. M.2 22110 dual mode
from X299 Chipset
15. Front USB 3.2 Gen 2
Type-C™ connector

16. 4* Front USB 3.2 Gen 2 connectors

17. Intel® X299 Chipset

18. 8 x SATA 6Gb/s

19. ● M.2 22110 PCIE x4 mode
from CPU /X299 Chipset
● Intel® Optane Memory Ready

20. ASUS Node

21. 2* 4-pin RGB headers

22. Addressable Gen 2 RGB header


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.

Power

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.

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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.
Memory

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.

Intel Core i9-7900X | Motherboard : Prime X299-A II | DRAM : GSKILL F4-3600C14Q-32GTZNB | Water-cooling : Corsair H115

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Multi-GPU support

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.

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CPU over 44 Lane 3-Way/2-Way
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CPU over 28 Lane 2-Way

Storage

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M.2

Achieve 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.

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VROC

Upgrade your RAID

Use onboard M.2 slots and ASUS Hyper M.2 x16 Card V2* to take advantage of Intel's Virtual RAID on CPU (VROC)** by connecting the three M.2 drives in RAID configurations. With VROC, your RAID arrays are easily configured to be bootable, and traditional DMI bottlenecks are eliminated so that your storage is not held back by other traffic.

* ASUS Hyper M.2 x16 Card V2 is a separate purchase.
** Additional purchase of Intel VROC hardware key required for RAID 1, 5 or 10.

Connectivity

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USB 3.2 Gen 2 front-panel connector

Future-proof connectivity

Plenty of USB ports are provided to support high-end rigs loaded with peripherals, including a front-panel header with faster USB 3.2 Gen 2 connectivity for compatible cases.

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Intel Ethernet

More throughput, less CPU usage and great gaming experiences

The latest Intel I219-V Ethernet has the advantage of reducing CPU overhead and offering exceptionally high TCP and UDP throughput for faster, smoother data transfer.



Lower CPU workload
High TCP & UDP throughput

Cool to the core

Effective cooling is extremely important, even at stock speeds. That is why the Prime X299-A II allows consolidated cooling control of the entire system, even for the most hardcore rigs. It comes equipped with onboard heatsinks, an array of fan headers, and options for water pump or AIO headers.

Heatsinks

M.2 Heatsinks

Two M.2 slots are covered by heatsinks to combat temperature-induced throttling that can affect performance during heavy, sustained storage loads.

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Anti-drop screws minimize the risk of falling parts during heatsink removal.

Backplate

A reinforced backplate improves the stability of the board, and the included thermal pad efficiently directs heat away from the VRM and other components.

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Tune it your way

Comprehensive controls form the foundation of the ASUS Prime series. The Prime X299-A II packs flexible tools to tune every aspect of your system to deliver the performance that you desire.

AI Overclocking

AI Overclocking

ASUS AI Overclocking makes automatic tuning faster and smarter than ever before. Available in Windows or directly through the UEFI, it profiles the CPU and cooling to predict the optimal configuration for each individual system.

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CPU Potential

A proprietary algorithm evaluates the capabilities of your CPU
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Cooling Capability

Onboard intelligence watches system vitals such as temperature, fan speed, and power draw to gauge cooling performance

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5-way Optimization

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 quiet as a whisper 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.


UEFI BIOS

UEFI BIOS

The renowned UEFI BIOS provides everything you need to configure, tweak, and tune your rig. It offers intelligently simplified options for newcomers to PC DIY, as well as comprehensive features for seasoned veterans.

Advance Mode

Advanced tuning for serious tweaker

When you're ready for a deeper dive into the configuration of your system, delve into the UEFI's Advanced mode and take complete control. Each section is intuitively organized, and a built-in search feature makes it easy to find the options you need. Advanced functions are coded with the intelligence to adapt to your settings, and when you're ready to take charge, parameters have the granularity to dial in performance just the way you want.

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Prediction
AI Overclocking monitors system vitals such as temperature, fan speed, and power draw to estimate overclocking performance.

AI Overclocking Guide
The AI Overclocking Guide allows you to enable AI Overclocking or to view a quick guide.

Search Function
Quickly and easily find the option or setting that you're looking for.

ASUS User Profile
Port configuration settings between different BIOS versions or share them with friends.

EZ Mode

Breeze setup with ease

Designed to simplify setup, EZ mode presents all the vital settings and stats on one single page. With guided wizards, drag-and-drop functionality, and one-click application of important settings, your rig will be up and running in no time.

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AI Overclocking
Enable AI Overclocking intelligence via shortcut

Intuitive Graphical Fan Control
Fine-tune individual fans simply by dragging a curve with the mouse.

EZ XMP
Improve DRAM performance with one click.

Aura On/Off mode (Stealth)
Easily enable or disable Aura RGB lighting or every onboard LED, for a subdued aesthetic touch.

Little things make a big difference

We pay careful attention to all the little details that improve your overall experience, from integrating a flashing utility directly into the UEFI to simplifying firmware updates or displaying your system vital signs. Prime X299-A II provides the tools you need to personalize your build and stay on top of things.

DIY Friendly

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Pre-mounted I/O Shield

Set up without slip-ups

Form meets function in the pre-mounted I/O shield that we pioneered with the ROG series. Now available on Prime X299-A II, this feature streamlines the installation process for budding builders and savvy enthusiasts alike.
Audio

Exclusive Codec


Realtek codec and unique design features for pristine, powerful audio


Prime X299-A II 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 the gain to ensure optimal volume range for your headphones.

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DTS:X® Ultra adds a spatial audio feature to boost headphones and speakers for an enhanced gaming, VR, and extended reality experience. DTS:X Ultra supports sound based on channels, scenes, and objects to allow for deeper sonic immersion in enabled content. It also provides post-processing enhancements and device-level tuning for DTS® codecs.


Crystal Sound 3

Flawless audio that immerses you in 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 audio

Premium parts provide an immersive sound signature, with exceptional fidelity.

Personalization

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Aura Sync

Outshine the 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 and they can all be synced with an ever-growing portfolio of Aura-capable ASUS hardware. The board has dual headers for standard 4-pin RGB strips*, plus two more for the new Addressable Gen 2 RGB strips** and devices.


* The Aura RGB-strip header supports standard 5050 RGB LED strips with a maximum power rating of 3A (12V). For maximum brightness, strip length should not exceed 3m.

** The addressable RGB header supports WS2812B addressable RGB LED strips (5V/Data/Ground), with a max power rating of 3A (5V) and a max of 60 LEDs.

Static

Breathing

Strobing

Rainbow

Color Cycle

Starry Night

Music Effect

Smart


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Addressable Gen 2 RGB header

Prime X299-A II has an addressable Gen 2 RGB header, which is now capable of detecting the number of LEDs on second-gen addressable RGB devices, allowing the software to automatically tailor lighting effects to specific devices. The new headers also offer backward-compatibility with existing Aura RGB gear.

Armoury Crate

Armoury Crate is a new software utility designed to give you centralized control of supported products. From a single intuitive interface, Armoury Crate allows you to easily customize RGB lighting and effects for every compatible device in your arsenal. The software also provides control of settings for ASUS products, including keyboard and mouse preferences. Armoury Crate even features dedicated product registration and highlight to help you stay in touch with the ASUS community.

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AURA SYNC
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DRIVER & MANUAL DOWNLOAD
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ACCOUNT MANAGEMENT

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Intel Optane memory ready

Intel Optane™ is a revolutionary non-volatile memory technology supported by Prime X299-A II. Intel Optane memory modules accelerate attached storage to reduce boot and load times, so everything feels faster and more responsive.
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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 3.2 Gen 1 ports, 8 SATA 6 Gbps ports and up to 32 Gbps M.2 support for faster data retrieval.
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Intel® Core™ X-series processors for LGA 2066 socket

Intel Core X-series processors (6-core and above): 4-channel (8-DIMM), over 44 PCI Express 3.0/2.0 lanes.



  • Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.
  • All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
  • Specifications and features vary by model, and all images are illustrative. Please refer to specification pages for full details.
  • PCB color and bundled software versions are subject to change without notice.
  • Brand and product names mentioned are trademarks of their respective companies.
  • Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
  • *Precise specifications and features vary by model. Please refer to the specification page
  • The product (electrical , electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.
  • The use of trademark symbol (TM, ®) appears on this website means that the word text, trademarks, logos or slogans, is being used as trademark under common laws protection and/or registered as Trademark in U.S. and/or other country/region.

About ASUS

ASUS aspires to deliver the incredible in everything it does. With more than 17,000 employees around the globe with a world-class R&D team of 5,500 engineers, ASUS is dedicated to the design and manufacture of products that perfectly meet the needs of today’s (and tomorrow’s) digital home and office. ASUS’ broad portfolio includes motherboards, graphics cards, displays, desktop PCs, all-in-one PCs, laptops, servers, wireless networking devices, tablets, smartphones and wearables. Driven by innovation and committed to quality, the company won 4,385 awards and earned approximately US$13.3 billion of revenue in 2016.

© 2019 ASUS Computer International. All Rights Reserved. ASUS is a registered trademark of ASUSTeK Computer. All specifications and terms are subject to change without notice. Please check with your supplier for exact offers on selected models. Products may not be available in all markets. Product may not be exactly as shown in photos. Actual colors may differ from their appearance due to variation of monitor restrictions and color processing. All trademarks are registered to their respective companies. ASUS shall not be liable for technical or editorial errors or omissions contained herein.

Model
Brand ASUS
Series Prime
Model X299-A II
Supported CPU
CPU Socket Type  LGA 2066
CPU Type Intel Socket 2066 Core X-Series Processors
* Refer to www.asus.com for CPU support list
Supported CPU Technologies Turbo Boost Technology 3.0
* The Intel Turbo Boost Max Technology 3.0 support depends on the CPU types
Chipsets
Chipset  Intel X299
Memory
Number of Memory Slots 8×288pin
Memory Standard DDR4 4266(O.C.)/ 4200(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3600(O.C.)/ 2666/ 2400/ 2133 MHz Non-ECC, Un-buffered Memory
* Hyper DIMM support is subject to the physical characteristics of individual CPUs.
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Maximum Memory Supported 256GB
Expansion Slots
PCI Express 3.0 x16 44-Lane CPU:
3 x PCIe 3.0/2.0 x16 (x16, x16/x16, x16/x16/x8)
28-Lane CPU:
2 x PCIe 3.0/2.0 x16 (x16, x16/x8)*
* PCIeX16_3 will be disabled when using 28-lane CPU.
PCI Express x1 2 x PCIe 3.0/2.0 x1 *
* PCIEX1_1 shares bandwidth with USB 3.2 Gen 2 front panel connector (U31G2_E1). It is disabled by default.
* PCIEX1_2 shares bandwidth with SATA6G_7.
Other Slots 1 x M.2 Socket 1 with E key, type 2230 for WIFI/BT devices support PCIE/USB mode*
* The Wi-Fi E key shares bandwidth with PCIEX1_1.
* The Wi-Fi/BT module is purchased separately.
Storage Devices
SATA 6Gb/s  8 x SATA 6Gb/s port(s)*
* The SATA6G_7 shares bandwidth with PCIeX1_2.
M.2 Intel X299 Chipset:
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x4 mode)*
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x4 mode)**

Intel Core i9 9000/7000 and i7 9000 X-Series CPU:
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x4 mode)

* The M.2_2 socket shares bandwidth with SATA6G_1 port when using M.2 SATA devices.
** The M.2_1 PCIe mode source is from X299 Chipset when using 44 and 28-lane CPU.
Intel Optane Ready Yes
* The M.2 PCIE mode source from X299 Chipset supports Intel Optane Memory
SATA RAID 0/1/5/10
Onboard Audio
Audio Chipset  Realtek S1220A High Definition Audio CODEC
Audio Channels  8 Channels
Onboard LAN
LAN Chipset Intel I219-V
Max LAN Speed 10/100/1000Mbps
Rear Panel Ports
Back I/O Ports 1 x PS/2 keyboard/mouse combo port(s)
1 x LAN (RJ45) port(s)
4 x USB 3.2 Gen 1
2 x USB 2.0 (one port can be switched to USB BIOS Flashback)
1 x Optical S/PDIF out
5 x Audio jack(s)
1 x USB BIOS Flashback Button(s)
2 x USB 3.2 Gen 2 (up to 10Gbps) ports (Type-A + USB Type-C)
Internal I/O Connectors
Onboard USB 1 x USB 3.2 Gen 2 front panel connector
2 x USB 3.2 Gen 1 (up to 5Gbps) connector(s) support(s) additional 4 USB 3.2 Gen 1 port(s)
2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
Other Connectors 1 x Aura Addressable Strip Header(s)
1 x AAFP connector
2 x Aura RGB Strip Header
1 x M.2_FAN connector
1 x VROC_HW_Key
1 x CPU Fan connector(s)
1 x CPU OPT Fan connector(s)
2 x Chassis Fan connector(s)
1 x W_PUMP+ connector
1 x AIO_PUMP connector
1 x Front panel audio connector(s) (AAFP)
1 x System panel(s) (Q-Connector) (Chassis intrusion header is inbuilt)
1 x Thermal sensor connector(s)
1 x Power-on button(s)
1 x Clear CMOS jumper(s)
1 x Node Connector(s)
1 x CPU_OV jumper
1 x Q-Code
Physical Spec
Form Factor ATX
LED Lighting RGB
Dimensions (W x L) 12.0" x 9.6"
Power Pin 1 x 24-pin EATX Power connector(s)
2 x 8-pin EATX 12V Power connectors
Features
Features Multi-GPU Support:
Supports NVIDIA Quad-GPU SLI Technology
Supports NVIDIA 3-Way SLI Technology
Supports NVIDIA 2-Way SLI Technology
Supports AMD Quad-GPU CrossFireX Technology
Supports AMD 3-Way CrossFireX Technology

Special Features:
OC Design - ASUS PRO Clock II Technology
5-Way Optimization by Dual Intelligent Processors 5
- 5-Way Optimization tuning key perfectly consolidates TPU, EPU, DIGI+ VRM, Fan Xpert 4, and Turbo Core App
AI Overclocking
ASUS 5X Protection III:
- ASUS SafeSlot Core: Fortified PCIe Slot prevents damage
- ASUS LANGuard: Protects against LAN surges, lightning strikes and static-electricity discharges!
- ASUS Overvoltage Protection: World-class circuit-protecting power design
- ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability!
- ASUS Enhanced DRAM Overcurrent Protection - Short circuit damage prevention
- ASUS ESD Guards - Enhanced ESD protection
ASUS SafeSlot - Protect your graphics card Investment
AURA:
- Aura RGB Strip Headers
- Aura Lighting Effects Synchronization with compatible ASUS ROG devices
- Aura Addressable Strip Header(s)
ASUS Exclusive Features:
- USB BIOS Flashback
- AI Suite 3
- Ai Charger
- Onboard Button: Power
- ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface
- ASUS CrashFree BIOS 3
- Turbo LAN
- Armoury Crate
- Pre-mounted I/O Shield
- ASUS NODE: hardware control interface
- BIOS Flashback Button
ASUS Quiet Thermal Solution:
- Stylish Fanless Design with M.2 Heat-sink solution
- ASUS Fan Xpert 4
ASUS Q-Design:
- ASUS Q-Code
- ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED, HDD LED)
- ASUS Q-Slot
- ASUS Q-DIMM
- ASUS Q-Connector
Intel Virtual RAID on CPU (VROC) ready
DIY Friendly Design
- ProCool II
- SafeSlot

Manageability:
WfM 2.0, DMI 3.0, WOL by PME, PXE

Support Disc:
Drivers
ASUS Utilities
EZ Update
Anti-virus software (OEM version)

Operating System:
Windows 10 64-bit
Packaging
Package Contents Accessories:
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 (80cm)
1 x Extension cable for Addressable LED
Additional Information
Date First Available October 22, 2019

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