Asrock X299 Extreme4 Motherboard


  • Supports Intel Core X-Series Processor Family for the LGA 2066 Socket
  • 11 Power Phase Design, Dual Power Connectors
  • Supports DDR4 4200+(OC)
  • XXL Aluminum Alloy Heatsink &Heatpipe Design
  • 3 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 (Key E)
  • NVIDIA Quad SLI, AMD Quad CrossFireX
  • 8 SATA3, 2 Ultra M.2 (PCIe Gen3 x4 &SATA3)
  • 2 USB 3.1 Gen2 10Gb/s (1 Type-A, 1 Type-C)
  • 6 USB 3.1 Gen1 (2 Front, 4 Rear)
  • Intel Gigabit LAN
  • 7.1 CH HD Audio (Realtek ALC1220 Audio Codec)
  • Supports Purity Sound 4 &DTS Connect
  • ASRock RGB LED



XXL Aluminum Alloy Heatsink &Heatpipe Design

Extra-large aluminum alloy heatsink along with heatpipe that effectively take away heat from the MOSFET, so that your whole system may perform more stable.

11 Power Phase Design

Designed with an 11-Power-Phase Design, this motherboard features sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.

Dual Power Connectors

Offering long-term reliability in various applications, this motherboard is equipped with dual power connectors to deliver cutting-edge current density.


The advanced PCI-E Steel Slots packed with solid cover that prevent any signal interference with graphics cards. It also ensures the heavy graphics cards to be well-installed in the PCI-E slots safely.

Dual Ultra M.2 For SSD

Two of the world’s fastest PCIe Gen3 x4 Ultra M.2 slots that deliver up to 32Gb/s transfer speed, it also supports SATA3 6Gb/s M.2 modules.



Build your own colorful lighting system! RGB LED and header allows users to connect LED strip and create their unique PC style easily. The ASRock RGB LED utility can be downloaded directly or from an all-in-one utility ASRock Live Update &APP Shop!

XXL Aluminum Alloy Heatsink

Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable

Premium 60A Power Choke

Compared to traditional chokes, ASRock’s premium 60A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Premium Memory Alloy Choke

Specifically designed for memory power delivery, these new alloy chokes feature a highly magnetic and heat resistant design, thus delivering more stable and reliable power to the motherboard and memory modules.

Dual-Stack MOSFET (DSM)

Dual-Stack MOSFET (DSM) is another innovative MOSFETs design by ASRock. The silicon die area is increased by stacking two dies into one MOSFET. The larger the die area, the lower Rds(on). Compared to traditional discrete MOSFET, DSM with larger die area provides extreme lower Rds(on) 1.2 mO, so the power supply for the CPU Vcore is more efficient.

Nichicon 12K Black Caps

Supreme 12K black capacitors with lifespans of at least 12,000 hours. Compared to other counterparts on high-end motherboards that merely have lifespans of around 10,000 hours, ASRock applied Nichicon 12K Black Caps that offer 20% longer lifespans and provide more stability and reliability.

High Density Glass Fabric PCB

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

Purity Sound 4

It's time to enjoy the most purified audio performance with ultra high definition. Purity Sound4 is a combination of several hardware, software audio solutions. 7.1 CH HD audio with the latest Realtek ALC1220 audio codec, individual PCB layers for R/L audio channel, 120dB SNR DAC and other technologies to deliver the crispest sound effects.



Gold Audio connector

TI® NE5532 Premium Headset Amplifier

Individual PCB Layers for R/L Audio Channel

Impedance Sensing on Front Out port

PCB Isolate Shielding

Pure Power-In

Nichicon Fine Gold Series Audio Caps

Intel® Optane Memory Ready

Supports Intel® Optane memory technology and Intel® Optane storage technology that redefines a new standard of high performance and responsiveness.

Dual USB 3.1 Gen2 (Type-A + Type-C)

The newer and more power efficient ASM3142 USB 3.1 Gen2 controller not only delivers up to 10 Gbps data transfer rates but also supports "Multiple Ins" architecture, it is able to maintain fast and stable speed while transferring data from two USB storage devices at the same time without bogging down by their speed difference.

Intel® LAN

Intel® LAN provides the best throughput performance, lower CPU utilization, enhanced stability and is able to deliver ultimate network experience to users!

SLI HB Bridge Free Bundled

The free bundled ASRock's new SLI HB Bridge is compatible with the NVIDIA® GeForce GTX 1080 and 1070 graphics cards that doubles the available transfer bandwidth, thus delivering rock stable gameplay and experiencing surround gaming in the best way.

Water Pump Header

This is not only a standard CPU fan header, but also supports water pumps! This header provides a maximum of 1.5A power for supporting the most popular water pumps. User also can adjust the voltage of water pump to get higher cooling performance with lower noise.

M.2 (KEY E) For WiFi

Besides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot.

*Wi-Fi module is not included.

Live Update &APP Shop

ASRock Live Update &APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update &APP Shop.


Unique Feature

ASRock USB 3.1 Gen2

ASRock USB 3.1 Gen2 Type-A Port (10 Gb/s)

ASRock USB 3.1 Gen2 Type-C Port (10 Gb/s)

ASRock Super Alloy

XXL Aluminum Alloy Heatsink

Premium 60A Power Choke

Premium Memory Alloy Choke (Reduces 70% core loss compared to iron powder choke)

Dual-Stack MOSFET (DSM)

Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)

Matte Black PCB

High Density Glass Fabric PCB

ASRock Steel Slots

ASRock Ultra M.2 (PCIe Gen3 x4 &SATA3)

ASRock Full Spike Protection (for all USB, Audio, LAN Ports)

ASRock Live Update &APP Shop


Supports Intel® Core X-Series Processor Family for the LGA 2066 Socket

Digi Power design

11 Power Phase design

Supports Intel® Turbo Boost Max Technology 3.0*

*Please note that the 4-Core processors only support Intel®Turbo Boost Technology 2.0.


Intel® X299


Quad Channel DDR4 Memory Technology

8 x DDR4 DIMM Slots

Supports DDR4 4200+(OC)* / 4133(OC) / 4000(OC) / 3866(OC) / 3800(OC) / 3733(OC) / 3600(OC) / 3200(OC) / 2933(OC) / 2800(OC) / 2666 / 2400 / 2133 non-ECC, un-buffered memory

Supports non-ECC RDIMM (Registered DIMM)

Max. capacity of system memory: 128GB**

Supports Intel® Extreme Memory Profile (XMP) 2.0

15¼ Gold Contact in DIMM Slots

*The maximum memory frequency supported may vary by processor type.

*Due to Intel®microcode updates, RDIMM is not supported with BIOS version 1.40 or above.

*Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows®32-bit OS. For Windows®64-bit OS with 64-bit CPU, there is no such limitation.


128Mb AMI UEFI Legal BIOS with multilingual GUI support

ACPI 6.1 Compliant wake up events

SMBIOS 3.0 Support





7.1 CH HD Audio with Content Protection (Realtek ALC1220 Audio Codec)

Premium Blu-ray Audio support

Supports Surge Protection

Supports Purity Sound 4

Nichicon Fine Gold Series Audio Caps

120dB SNR DAC with Differential Amplifier

NE5532 Premium Headset Amplifier for Front Panel Audio Connector (Supports up to 600 Ohm headsets)

Pure Power-In

Direct Drive Technology

PCB isolate shielding

Impedance Sensing on Front Out port

Individual PCB Layers for R/L Audio Channel

15¼ Gold Audio Connector

Supports DTS Connect


Gigabit LAN 10/100/1000 Mb/s

Giga PHY Intel® I219V

Supports Wake-On-LAN

Supports Lightning/ESD Protection

Supports Energy Efficient Ethernet 802.3az

Supports PXE


3 x PCI Express 3.0 x16 Slots*

1 x PCI Express 3.0 x1 Slot**

Supports AMD Quad CrossFireX and CrossFireX

Supports NVIDIA® Quad SLI and SLI

1 x M.2 Socket (Key E), supports type 2230 WiFi/BT module

15¼ Gold Contact in VGA PCIe Slot (PCIE2 and PCIE3)

*If you install CPU with 44 lanes, PCIE2/PCIE3/PCIE4 will run at x16/x16/x4.

*If you install CPU with 28 lanes, PCIE2/PCIE3/PCIE4 will run at x16/x8/x4.

*If you install CPU with 16 lanes, PCIE2/PCIE3/PCIE4 will run at x16/x0/x4 or x8/x8/x4.

*Supports NVMe SSD as boot disks

*If PCIE1 slot is occupied, M2_3 slot will be disabled.


8 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1, RAID 5, RAID 10, Intel® Rapid Storage Technology 15 and Intel®Smart Response Technology), NCQ, AHCI and Hot Plug*

1 x Ultra M.2 Socket (M2_1), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)**

1 x Ultra M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)**

*If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.

*If M2_2 is occupied by a SATA-type M.2 device, SATA3_1 will be disabled.

*Supports Intel®Optane Technology

*Supports NVMe SSD as boot disks

*Supports ASRock U.2 Kit


1 x Virtual RAID On CPU Header

1 x TPM Header

1 x Power LED and Speaker Header

2 x RGB LED Headers*

1 x CPU Fan Connector (4-pin)**

1 x CPU Optional/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)***

2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)

1 x Chassis Optional/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)****

1 x 24 pin ATX Power Connector (Hi-Density Power Connector)

2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)

1 x Front Panel Audio Connector (15¼ Gold Audio Connector)

1 x Thunderbolt AIC Connector (5-pin)*****

2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)

1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)

1 x Performance Mode / Easy OC Header

*Supports in total up to 12V/3A, 36W LED Strip

*The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

*The CPU Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power.

*The Chassis Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power.

CPU_OPT/W_PUMP1, CHA_FAN1, CHA_FAN2 and CHA_FAN3/W_PUMP2 can auto detect if 3-pin or 4-pin fan is in use.

*The Thunderbolt AIC card can be installed in the enabled PCIe slot (depending on CPU type).

Rear Panel I/O

1 x PS/2 Mouse Port

1 x PS/2 Keyboard Port

1 x Optical SPDIF Out Port

2 x USB 2.0 Ports (Supports ESD Protection)

1 x USB 3.1 Gen2 Type-A Port (10 Gb/s) (ASMedia ASM3142) (Supports ESD Protection)

1 x USB 3.1 Gen2 Type-C Port (10 Gb/s) (ASMedia ASM3142) (Supports ESD Protection)

4 x USB 3.1 Gen1 Ports (Supports ESD Protection)

1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)

1 x Clear CMOS Button

HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone

Software and UEFI


ASRock A-Tuning


ASRock XFast LAN


ASRock EZ Mode


ASRock My Favorites in UEFI

ASRock Instant Flash

ASRock Internet Flash

ASRock Crashless BIOS

ASRock UEFI System Browser

ASRock UEFI Tech Service

ASRock Easy RAID Installer

Support CD

Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar


Quick Installation Guide, Support CD, I/O Shield

4 x SATA Data Cables

1 x ASRock SLI_HB_Bridge_2S Card

3 x Screws for M.2 Sockets

1 x WiFi Bracket

Hardware Monitor

Temperature Sensing: CPU, CPU Optional/Water Pump, Chassis, Chassis Optional/Water Pump Fans

Fan Tachometer: CPU, CPU Optional/Water Pump, Chassis, Chassis Optional/Water Pump Fans

Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU Optional/Water Pump, Chassis, Chassis Optional/Water Pump Fans

Fan Multi-Speed Control: CPU, CPU Optional/Water Pump, Chassis, Chassis Optional/Water Pump Fans

Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM, PCH 1.0V, VCCIO, VCCSA, VCCSFR

Form Factor

ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm


Microsoft® Windows® 10 64-bit



ErP/EuP ready (ErP/EuP ready power supply is required)

No additional files, specification sheets, guides or documentation found for product.

Warranty: 12 Month Return To Base

Full manufacturers warranty details are available at the manufacturers (Asrock) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

Visitor Reviews

[ There are no visitor reviews for this product yet]

Review Product
Click on a thumbnail to view it below

No related products found.

L7: 1 | TM: 2 | LM: 2 | TY: 2 | T: 65

Secure Online Shopping

We accept the following with No surcharge on VISA, Mastercard and Paypal!
Techbuy Pty Ltd 2000 - 2019 All rights reserved.
All prices shown on are in $AUD and inclusive of GST. Prices and availability are subject to change without prior notice. Images displayed are accurate to the best of our knowledge and we will not be held responsible for purchases based soley on these images. All brands and names are trademarks of their respective companies. Shipping Australia wide to all metro and regional areas (Sydney, Melbourne, Brisbane, Adelaide, Perth) and Internationally. For more information, please see our usage policies.