PRIME X299-A

Intel® Socket 2066 Core™ X-Series Processors
* The Intel® Turbo Boost Max Technology 3.0 support depends on the CPU types
* Refer to www.asus.com for CPU support list

Intel® X299

Intel® Core™ X-series Processors (4-core)
Intel® Core™ X-series Processors (6-core above)
* Hyper DIMM support is subject to the physical characteristics of individual CPUs. 
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
8 x DIMM, Max. 128GB, DDR4 2666/3600(O.C.)/4000(O.C.)/2400/2133 MHz Un-buffered, Non-ECC Memory
4 x DIMM, Max. 64GB, DDR4 4000(O.C.)/2666/2133/3600(O.C.)/2400 MHz Non-ECC, Un-buffered Memory

Supports AMD 3-Way CrossFireX™ Technology
Supports NVIDIA® 3-Way SLI™ Technology
Supports AMD Quad-GPU CrossFireX™ Technology
Supports NVIDIA® 2-Way SLI™ Technology
Supports NVIDIA® Quad-GPU SLI™ Technology

28-Lane CPU-
2 x PCIe 3.0 x4 (max at x4 mode) *¹
1 x PCIe 3.0/2.0 x1 (x1 mode)
3 x PCIe 3.0/2.0 x16 (x16, x16/x8, x16/x8/x1)
3 x PCIe 3.0/2.0 x16 (x16, x16/x16, x16/x16/x8)
3 x PCIe 3.0/2.0 x16 (x16, x8/x8, x8/x8/x1)
2 x PCIe 3.0 x4 (max at x4 mode) *¹
2 x PCIe 3.0 x4 (max at x4 mode) *¹
44-Lane CPU-
16-Lane CPU-

Intel® Optane™ Memory Ready
Supports Intel® Smart Response Technology, Intel Rapid Start Technology
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
Support Raid 1, 10, 0, 5
1 x M.2 x4 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode)
8 x SATA 6Gb/s port(s)
Intel® X299 Chipset :

ASUS LAN Guard
ASUS Turbo LAN Utility
featuring Turbo LAN, 1 x Gigabit LAN Controller(s), Intel® I219V

- Supports : Multi-streaming, Jack-detection, Front Panel Jack-retasking
- Impedance sense for front and rear headphone outputs
Audio Feature :
- Optical S/PDIF out port(s) at back panel
- Unique de-pop circuit: Reduces start-up popping noise to audio outputs
- Audio Shielding: Ensures precision analog/digital separation and greatly reduced multi-lateral interference
- Premium Japanese-made audio capacitors: Provide warm, natural and immersive sound with exceptional clarity and fidelity
- DTS Connect
- DTS Headphone:X
- Dedicated audio PCB layers: Separate layers for left and right channels to guard the quality of the sensitive audio signals
- EMI protection cover to prevent electrical noise to affect the amplifier quality
Separate layer for left and right track, ensuring both sound deliver equal quality
- Internal audio Amplifier to enhance the highest quality sound for headphone and speakers
Realtek® S1220A 8-Channel High Definition Audio CODEC

Intel® X299 Chipset :
8 x USB 3.1 Gen 1 port(s) (4 at mid-board, 4 at back panel, )
ASMedia® USB 3.1 Gen 2 controller :
1 x USB 3.1 Gen 2 port(s) (1 at mid-board)
ASMedia® USB 3.1 Gen 2 controller :
2 x USB 3.1 Gen 2 port(s) (Type-A + USB Type-C^TM)
Intel® X299 Chipset :
4 x USB 2.0 port(s) (4 at back panel, , 2 at mid-board)

ASUS EZ DIY :
- ASUS UEFI BIOS EZ Mode
- ASUS USB BIOS Flashback
- Multi-language BIOS
- ASUS EZ Flash 3 
ASUS Exclusive Features :
- Ai Charger
- Crystal Sound 3
- MemOK!

- Turbo LAN
- AI Suite 3
- Onboard Button : Power
- USB BIOS Flashback
- ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface
OC Design - ASUS PRO Clock Technology

AURA :
- Aura RGB Strip Headers
- Aura Lighting Effects Synchronization with compatible ASUS ROG devices
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
ASUS Q-Design :
- ASUS Q-Slot
- ASUS Q-Connector
- ASUS Q-LED (VGA, CPU, Boot Device LED, HDD LED, DRAM)
- ASUS Q-DIMM
- ASUS Q-Code
- ASUS Q-Shield
Gaming Aesthetics :
- 3D printing friendly
- AURA-RGB Lighting
M.2 Onboard(The latest transfer technologies with up to 32Gb/s data transfer speeds)

1 x Optical S/PDIF out
2 x USB 2.0 (one port can be switched to USB BIOS Flashback)
4 x USB 3.1 Gen 1
2 x USB 3.1 Gen 2 ()Type-A + USB Type-C^TM
1 x LAN (RJ45) port(s)
5 x Audio jack(s)
1 x USB BIOS Flashback Button(s)

1 x USB 2.0 connector(s) support(s) additional 2 USB 2.0 port(s)
1 x 8-pin ATX 12V Power connector(s)
1 x CPU_OV jumper
8 x SATA 6Gb/s connector(s)
1 x 4-pin ATX 12V Power connector(s)
1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
1 x AAFP connector
1 x USB 3.1 Gen 2 front panel connector
1 x Clear CMOS jumper(s)
1 x CPU OPT Fan connector(s)
1 x AIO_PUMP connector
1 x MemOK! button(s)
1 x W_PUMP+ connector
2 x USB 3.1 Gen 1 connector(s) support(s) additional 4 USB 3.1 Gen 1 port(s)
1 x 24-pin EATX Power connector(s)
1 x Thermal sensor connector(s)
1 x Thunderbolt header(s)
1 x CPU Fan connector(s)
1 x System panel(s) (Q-Connector)
1 x Power-on button(s)
2 x Aura RGB Strip Header
2 x Chassis Fan connector(s)
1 x M.2 Socket 3 with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode)

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

128 Mb 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

WfM 2.0, DMI 3.0, WOL by PME, PXE

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

Windows® 10 64-bit

ATX Form Factor
12 cm x 9.6  cm ( 30.5  cm x 24.4  cm )

1. PCIEX4_1 max. at x1 mode, PCIEX4_2 max. at x4 mode
2. SATA6G_4/5/6/7 share bandwidth with PCIEX4_2.