* Hyper DIMM support is subject to the physical characteristics of individual CPUs.
* Actual memory frequency differs from Intel CPU types and memory module. Please check Intel official site for more detail about the memory types supported by each CPU.
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Overview
Specs
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Learn more about the ASUS WS X299 PRO
Model
Brand
ASUS
Model
WS X299 PRO
Supported CPU
CPU Socket Type
LGA 2066
CPU Type
Core X series (LGA2066) * Refer to www.asus.com for CPU support list
Supported CPU Technologies
The Intel Turbo Boost Max Technology 3.0 support depends on the CPU types
Chipsets
Chipset
Intel X299
Memory
Number of Memory Slots
Intel Core X-series Processors (6-core above): 8 x DIMM
Intel Core X-series Processors (4-core): 4 x DIMM
Memory Standard
DDR4 4133(O.C.)/ 3600(O.C.)/ 2666/ 2400/ 2133
* Hyper DIMM support is subject to the physical characteristics of individual CPUs. * Actual memory frequency differs from Intel CPU types and memory module. Please check Intel official site for more detail about the memory types supported by each CPU.
Intel Core X-series Processors (4-core): 4 x DIMM, Max. 64GB
Expansion Slots
PCI Express 3.0 x16
44-Lane CPU: 2 x PCIe 3.0 x16 (x16 mode) 1 x PCIe 3.0 x16 (x8 mode) 1 x PCIe 3.0 x16 (x4 mode)
28-Lane CPU: 1 x PCIe 3.0 x16 (x16 mode) 1 x PCIe 3.0 x16 (x8 mode) 1 x PCIe 3.0 x16 (x4 mode)
16-Lane CPU: 1 x PCIe 3.0 x16 (x8 mode) 2 x PCIe 3.0 x16 (x4 mode)
PCI Express x4
1 x PCIe 3.0 x4 (x4 mode)
Storage Devices
Serial ATA (SATA)
6 x SATA 6Gb/s
M.2
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x4 mode)* 1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x4 mode)** 1 x U.2 connector
* Bandwidth is shared between M.2_2 and U.2 ** SATA Bandwidth is shared between M.2_1 and SAT6G_1
Intel Optane Ready
Yes
SATA RAID
0/1/5/10
Onboard Audio
Audio Chipset
Realtek ALC S1220A
Audio Channels
7.1 Channels
Onboard LAN
LAN Chipset
Intel I210-AT, 2 x Gigabit LAN Controller(s)
Max LAN Speed
2 x 1Gbps
Rear Panel Ports
Back I/O Ports
1 x Optical S/PDIF Out / 1 x USB 3.1 Gen 2 Type-A / 1 x USB 3.1 Gen 2 Type-C / 4 x USB 2.0/1.1 / 4 x USB 3.1 Gen 1 Type-A
RJ45
2 x RJ45
USB 3.1
2 x USB 3.1 Gen 2 (Type-A + USB Type-C) 4 x USB 3.1 Gen 1
USB 1.1/2.0
4 x USB 2.0
S/PDIF Out
1 x Optical
Audio Ports
5 Ports
Internal I/O Connectors
Onboard USB
1 x USB 3.1 Gen 2 front panel connector 1 x USB 3.1 Gen 1 connector(s) support(s) additional 2 USB 3.1 Gen 1 port(s) 1 x USB 2.0 connector(s) support(s) additional 2 USB 2.0 port(s)
Other Connectors
1 x Aura Addressable Strip Header(s) 1 x AAFP connector 1 x Aura RGB Strip Header 1 x TPM header 1 x VROC_HW_Key 2 x CPU Fan connector(s) 1 x AIO_PUMP connector 1 x Thunderbolt header(s) 1 x EZ XMP switch 1 x Front panel connector(s) 1 x AUX panel header(s) 1 x MemOK! button(s) 1 x Thermal sensor connector(s) 1 x CPU OV 1 x Power-on button(s) 1 x Clear CMOS button(s) 1 x 5-pin EXT_FAN (Extension Fan) connector 1 x Rear fan 1 x COM port header 1 x PANEL2 1 x PUMP Fan connector 1 x PANEL1
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 ATX 12V Power connector(s) 1 x 6-pin EZ_PLUG Power connector(s)
Features
Features
Multi-GPU Support: Supports NVIDIA 3-Way SLI Technology * Supports AMD 3-Way CrossFireX Technology * *Actual number of Multi-graphic supported differs per Vendors' Graphic cards. Please check with Vendor beforehand.
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 Expert 4, and Turbo App TPU Fan Xpert4 - Fan Xpert 4 featuring Fan Auto Tuning function and multiple thermistors selection for optimized system cooling control ASUS 5X Protection III: - ASUS SafeSlot Core: Fortified PCIe Slot prevents damage - 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 EPU: - EPU ASUS Digital Power Design: - Industry leading Digital 8 Phase CPU Power Design - Industry leading Digital 2 Phase DRAM Power Design AURA: - Aura RGB Strip Headers - Aura Addressable Strip Header(s) ASUS Exclusive Features: - AI Suite 3 - Ai Charger+ - Turbo LAN - Crystal Sound 3 ASUS EZ DIY: - ASUS CrashFree BIOS - ASUS EZ Flash - ASUS USB BIOS Flashback - Multi-language BIOS ASUS Q-Design: - ASUS Q-Shield - ASUS Q-Code - ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED) - ASUS Q-Slot - ASUS Q-DIMM - ASUS Q-Connector M.2 and U.2 Onboard (The Latest Transfer Technology with up to 32Gb/s Data-transfer Speeds for M.2 and U.2) Asus Control Center (ACC) IT management software supported
Packaging
Package Contents
Accessories: User's manual 1 x Vertical M.2 bracket set I/O Shield 1 x COM port cable(s) 6 x SATA 6Gb/s cable(s) 2 x M.2 screws 1 x Supporting DVD 1 x 3-Way SLI bridge(s) 1 x SLI bridge(s) 1 x Q-Connector 1 x 2-port USB module(s) 1 x Extension Cable for RGB strips (80cm)
Additional Information
First Listed on Newegg
November 22, 2025
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.