Asus TUF X299 Mark2 (Socket 2066) Intel X299 ATX Motherboard

TUF X299 Mark2 (Socket 2066) Intel X299 ATX Motherboard

  • Support for X-series Intel Core Processors
  • SLI/Crossfire Support
  • 6x SATA ports
  • 3x M.2
  • Gigabit LAN
  • Realtek ALC1220 Audio
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Stock Code: MB-6A3-AS

EAN: 4712900775174


Manufacturer: Asus

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Product information:

TUF X299 Mark2 (Socket 2066) Intel X299 ATX Motherboard

The TUF-design ASUS TUF X299 MARK 2 is a well-equipped gaming motherboard for high- end Intel processors from the Skylake-X and Kaby Lake-X generations that work with the X299 chipset and require a LGA2066 socket. This chipset, codenamed "Lewisburg", makes a robust contender thanks to its up to 30 HSIO lanes (High-Speed Intput/Output) as well as the maximum of 24 PCI Express 3.0 lanes. This motherboard is a powerful all-rounder that allows more devices to be connected internally and used simultaneously.

The ASUS TUF X299 MARK 2 at a Glance:

  • 3× PCIe (3.0) x16 (2× x16 / 1× x8)
  • 2× USB 3.1 (2× Type-A) & 8× USB 3.0 (4× Type-A / 4× internal)
  • 6× USB 2.0 (4× Type-A / 2× internal)
  • 1× M.2 (SATA 6G & PCIe 3.0 x4) / 1× M.2 (PCIe 3.0 x4) / 6× SATA 6G
  • 8× DIMM-Slots for DDR4-RAM (max. 128 GB with 28 or. 44 lane CPU)
  • ASUS Q-Design Armor and Q-LED RGB-LED lighting

The ASUS TUF X299 MARK 2 in Detail

The ASUS TUF X299 MARK 2 is a well-equipped and robust motherboard with strong components in the ATX-Format. It is designed for gamers wanting a X299 & Skylake-X or Kaby Lake- X-compatible motherboard. The stylish red board with titanium-coloured cooling features provides three PCIe-x16 slots, of which two are equipped with the full 16 lanes to the chipset and one is connected electrically via eight data lines. This allows the use of a 28 or 44 lane CPU with NVIDIA 3- Way-SLI or AMD 3-Way-CrossFireX configurations.

Equipped with a total of eight DDR4-DIMM, a CPU with 28 or 44 data lines can operate all slots in Quad-Channel mode with up to a maximum capacity of 128 GB of memory. A CPU with 16 lanes supports Dual-Channel mode over four slots with a maximum capacity of 64 GB. Officially DDR4 modules can be used at up to 2.666 MHz, and clockspeeds of up to 4.000 MHz after overclocking!

The board comes with an extensive array of data storage options including two M.2 slots for ultra-fast NVMe-M.2 SSDs as well as six SATA-6G connectors for 3,5" or 2,5" hard drives and SSDs (including RAID support). The M.2 ports are connected to the chipset via four PCIe lanes using the 3.0 standard which enables, in combination with the NVMe protocol, a data transfer rate of almost 4 GB/s. This allows M.2 PCIe SSDs to function up to eight times faster than SATA 6G SSDs!

External Connectors

The I/O bracket of this performance-oriented motherboard comes with various useful ports to make life easier for users. Besides the two Type-A USB 3.1 ports that, thanks to the ASMedia 3142 USB 3.1 controller, can reach maximum speeds of up to 16 Gbit/s, which is three times as fast as previous USB 3.0 ports. Naturally the board comes with four USB 3.0 and 2.0 ports respectively for input devices and other gaming peripherals.

For unhindered network connectivity the ASUS TUF X299 MARK 2 also comes with an Intel Gigabit LAN port. For quality sound the the Realtek ALC1220 Codec and a total of five gold-plated audio ports are available, supplemented by an optical S/PDIF-Out port.

Additional Features

Counting among the unique features offered by the ASUS TUF X299 MARK 2 are the TUF-specific features that increase the aesthetic value for case modding projects along with armor and cooling elements that combine to create a truly awe-inspiring look. This includes premium electronic components built in the robust military standard for extra durability and Aura Sync RGB-LED lighting as well as helpful cooling and system monitoring tools.

Technical Details:

  • Format:
    ATX Form-Factor (30,5 x 24,4 cm)
  • Chipset:
    Intel X299 ("Lewisburg")
  • Socket:
    2066 (for Intel CPUs of the Skylake-X and Kaby Lake-X Generation)
  • RAM:
    8× DDR4 (Skylake-X: DDR4-2.666; up to 128 GB with a 44 or 28 lane CPU)
    4× DDR4 (Kabylake-X: DDR4-2.666; up to 64 GB with a 16 lane CPU)
    Quad-Channel (Skylake-X; supported by CPUs with 44 or 28 lanes)
    Dual-Channel (Kaby Lake-X; supported by CPUs with 16 lanes)
  • Slots (physical):
    2× PCIe 3.0 x16
    1× PCIe 3.0 x16 (electrical x8)
    Compatible Multi-VGA Configurations: 3-Way-SLI* (Quad-GPU), 3-Way-CrossFireX* (Quad-GPU)
    1× PCIe 3.0 x4
    2× PCIe 3.0 x1
  • Internal Connectors:
    6× SATA 6G
    1× M.2 (PCIe 3.0 x4, 2242/2260/2280/110)
    1× M.2 (PCIe 3.0 x4 & SATA, 2242/2260/2280)
    1× M.2 Fan Connector
    1× AAFP Connector
    4× USB 3.0 (two headers)
    2× USB 2.0 (one header)
    2× CPU Fan (4-Pin)
    2× System Fan (4-Pin)
    2× System Fan / Pump Connector(4-Pin)
    1× CPU-OPT Fan Connector
    1× Front-Panel Header
    1× Thermal Sensor Connector
    1× Thunderbolt Connector
    1× Clear CMOS Jumper
    1x Serial-Port Header (COM)
    1x MemOK! Button
    1x CPU_OV Jumper
    1x COM Port Header
  • External Connectors:
    2× USB 3.1 (Type-A)
    4× USB 3.0 (Type-A)
    4× USB 2.0 (Type-A incl. 1× BIOS Flashback)
    1× RJ45 LAN Port (Intel I219V)
    5× Audio (Realtek ALC1220)
  • Power Supply:
    1× 24-Pin ATX
    2× 8-Pin ATX 12V
*Only supported by CPUs with 44 or 28 lanes


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Product Specification:

Form Factor
CPU Socket
Motherboard Chipset
Intel X299

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