ASUS Prime X299-A II Motherboard - S2066 Core X-Series X299 256GB DDR4 USB W10

• 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™

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.

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.

Detail Specifications

• CPU
• Intel Socket 2066 CoreTM X-Series Processors
• The Intel Turbo Boost Max Technology 3.0 support depends on the CPU types
• Chipset: Intel X299
• Memory
• (Intel CoreTM i9 10000 X-Series CPU)
• 8 x DIMM, Max. 256GB, DDR4 4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3800(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3333(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2933/2800/2666/2400/2133 MHz Non-ECC, Un-buffered Memory
• (Intel CoreTM i9 9000/7000 and i7 9000 X-Series CPU)
• 8 x DIMM, Max. 256GB, DDR4 4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3800(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3333(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2933(O.C.)/2800(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory
• Supports Intel Extreme Memory Profile (XMP)
• Hyper DIMM support is subject to the physical characteristics of individual CPUs.
• 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 CrossFireXTM Technology
• Supports AMD 3-Way CrossFireXTM Technology
• Expansion Slots
• 48-Lane CPU-
• 3 x PCIe 3.0/2.0 x16 (x16, x16/x16, x16/x16/x8)
• 2 x PCIe 3.0/2.0 x1 1
• 44-Lane CPU-
• 3 x PCIe 3.0/2.0 x16 (x16, x16/x16, x16/x16/x8)
• 2 x PCIe 3.0/2.0 x1 1
• 28-Lane CPU-
• 2 x PCIe 3.0/2.0 x16 (x16, x16/x8) 2
• 2 x PCIe 3.0/2.0 x1 2
• 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
• Intel X299 Chipset : 1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA and PCIE 3.0 x 4 mode) 3
• 1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode) 4
• 8 x SATA 6Gb/s port(s) 5
• Support Raid 0, 1, 5, 10
• Intel Rapid Storage Technology supports
• (Intel CoreTM i9 10000 X-Series CPU) :
• 2 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode) Support Raid 0, 1, 5, 10
• Intel Rapid Storage Technology Enterprise supports
• (Intel CoreTM 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 x 4 mode)
• Support Raid 0, 1, 5, 10
• Intel Rapid Storage Technology 15 support
• Intel OptaneTM Memory Ready 6
• LAN
• Intel I219V, 1 x Gigabit LAN
• ASUS Turbo LAN Utility
• ASUS LAN Guard
• Audio
• Realtek S1220A 8-Channel High Definition Audio CODEC
• - Power pre-regulator reduces power input noise to ensure consistent performance
• - Impedance sense for front and rear headphone outputs
• - Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
• - Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking
• Audio Feature :
• - DTS X:Ultra
• - Optical S/PDIF out port(s) at back panel
• - Audio Shielding: Ensures precision analog/digital separation and greatly reduced multi-lateral interference
• - Dedicated audio PCB layers: Separate layers for left and right channels to guard the quality of the sensitive audio signals
• - Premium Japanese-made audio capacitors: Provide warm, natural and immersive sound with exceptional clarity and fidelity
• - Unique de-pop circuit: Reduces start-up popping noise to audio outputs
• USB Ports
• ASMedia USB 3.2 Gen 2 controller : 1
• 1 x USB 3.2 Gen 2 front panel connector port(s)
• ASMedia USB 3.2 Gen 2 controller : 1
• 2 x USB 3.2 Gen 2 (up to 10Gbps) port(s) (2 at back panel, , Type-A + USB Type-CTM)
• Intel X299 Chipset :
• 8 x USB 3.2 Gen 1 port(s) (4 at back panel, , 4 at mid-board)
• Intel X299 Chipset :
• 6 x USB 2.0 port(s) (2 at back panel, , 4 at mid-board)
• 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
• - Addressable Gen 2 Header
• ASUS Exclusive Features :
• - USB BIOS FlashBackTM
• - 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 FlashBackTM 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
• 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 FlashBackTM)
• 1 x Optical S/PDIF out
• 5 x Audio jack(s)
• 1 x USB BIOS FlashBackTM Button(s)
• 2 x USB 3.2 Gen 2 (up to 10Gbps) ports (Type-A + USB Type-CTM)
• Internal I/O Ports
• 1 x AAFP connector
• 2 x Aura RGB Strip Headers
• 1 x Addressable Gen 2 header(s)
• 1 x USB 3.2 Gen 1 front panel TypeCTM 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)
• 1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (SATA and PCIE 3.0 x 4 mode)
• 2 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode)
• 1 x COM port(s) connector(s)
• 8 x SATA 6Gb/s connector(s)
• 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 Thunderbolt header (5-pin) for ASUS ThunderboltEX series support
• 1 x 24-pin EATX Power connector(s)
• 2 x 8-pin EATX 12V Power connectors
• 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

Warranty Information

• 3 years from ASUS

Shipping Notes:

All our products are normally shipped within 1-2 business days from any of our warehouse locations below:

• Monrovia, CA 91016 (Most usual)
• Fremont, CA 94538
• Richardson, TX 75018
• Duluth, GA 30096
• Itasca, IL 60143
• Edison, NJ 08837

International orders may take an additional 2 to 3 days to processing documentation.

California Prop 65 Warning. This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. 

..JA