Model

Brand

ASUS

Model

Prime X299-A

Supported CPU

CPU Socket Type

LGA 2066

CPU Type

Core X series (LGA2066)

Supported CPU Technologies

The Intel Turbo Boost Max Technology 3.0 support depends on the CPU types
* Refer to www.asus.com for CPU support list

Chipsets

Chipset

Intel X299

Onboard Video

Onboard Video Chipset

None

Memory

Number of Memory Slots

Core X-series Processors (6-core above): 8 x 288pin
Core X-series Processors (4-core): 4 x 288pin

Memory Standard

DDR4 4000(O.C.)/ 3600(O.C.)/ 2666/ 2400/ 2133
* 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

Core X-series Processors (6-core above): 128GB
Core X-series Processors (4-core): 64GB

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-
3 x PCIe 3.0/2.0 x16 (x16, x16/x8, x16/x8/x1)*
16-Lane CPU-
3 x PCIe 3.0/2.0 x16 (x16, x8/x8, x8/x8/x1)*

* PCIEX16_3 share bandwidth with PCIEX4_1 when using x28 or x16 lane CPU

PCI Express x4

2 x PCIe 3.0 x4 (max at x4 mode) *
* PCIEX4_1 max. at x1 mode, PCIEX4_2 max. at x4 mode

PCI Express x1

1 x PCIe 3.0/2.0 x1
PCIEX1_1 shares bandwidth with Front USB 3.1 GEN 2

Storage Devices

SATA 6Gb/s

8 x SATA 6Gb/s

M.2

1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280 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)

SATA RAID

0/1/5/10

Onboard Audio

Audio Chipset

Realtek ALC S1220A

Audio Channels

8 Channels

Onboard LAN

LAN Chipset

Intel I219-V

Max LAN Speed

10/100/1000Mbps

Rear Panel Ports

RJ45

1 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

2 x USB 2.0 (one port can be switched to USB BIOS Flashback)

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
2 x USB 3.1 Gen 1 connector(s) support(s) additional 4 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 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 AIO_PUMP connector
1 x W_PUMP+ connector
1 x Thunderbolt header(s)
1 x System panel(s) (Q-Connector)
1 x 5-pin EXT_FAN (Extension Fan) connector
1 x MemOK! button(s)
1 x Thermal sensor connector(s)
1 x Power-on button(s)
1 x Clear CMOS jumper(s)
1 x CPU_OV jumper

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)
1 x 8-pin ATX 12V Power connector(s)
1 x 4-pin ATX 12V Power connector(s)

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
ASUS Dual Intelligent Processors 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
AURA:
– Aura RGB Strip Headers
– Aura Lighting Effects Synchronization with compatible ASUS ROG devices
ASUS Exclusive Features:
– USB BIOS Flashback
– MemOK!
– AI Suite 3
– Ai Charger
– Onboard Button: Power
– ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface
– Turbo LAN
– Crystal Sound 3
File Transfer
– Cloud GO!
– File Transfer
ASUS EZ DIY:
– ASUS EZ Flash 3
– ASUS USB BIOS Flashback
– ASUS UEFI BIOS EZ Mode
– Multi-language BIOS
ASUS Q-Design:
– ASUS Q-Shield
– ASUS Q-Code
– ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED, HDD LED)
– ASUS Q-Slot
– ASUS Q-DIMM
– ASUS Q-Connector
Gaming Aesthetics:
– 3D printing friendly
– AURA-RGB Lighting
M.2 Onboard (The latest transfer technologies with up to 32Gb/s data transfer speeds)

BIOS:
128MB Flash ROM, UEFI AMI BIOS, PnP, DMI3.0, WfM2.0, SM BIOS 3.0, ACPI 6.0, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Last Modified log, F12 PrintScreen and ASUS DRAM SPD (Serial Presence Detect) memory information

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
ASUS Q-Shield
1 x Vertical M.2 bracket set
4 x SATA 6Gb/s cable(s)
1 x M.2 Screw Package
1 x Supporting DVD
1 x SLI HB BRIDGE (2-WAY-M)
1 x Q-Connector