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Product Highlights

  • ATX Form Factor
  • Intel LGA2011-3 Socket
  • Intel X99 Express Chipset
  • Supports Intel Core i7 Extreme Edition
  • Supports DDR4-3333 (OC) Memory
  • Supports SATA III, SATA Express, M.2
  • USB 3.1 / USB 3.0 / USB 2.0
  • 4 x PCIe 3.0 x16 / 2 x PCIe 2.0 x1
  • Intel I210-AT Gigabit LAN
  • RAID 0, 1, 5, and 10
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MSI X99A overview

  • 1Description

The X99A SLI KRAIT EDITION Motherboard from MSI is designed to fit in cases that support the ATX form factor. It supports Intel Core i7 Extreme Edition processors in the LGA1150-3 socket, as well as the Intel X99 Express chipset. It is optimized for multiple graphics cards and also supports Windows 8.1, 8, and 7 operating systems.

The ATX form factor of the X99A has eight RAM slots that can support up to 128GB of non-ECC, unbuffered DDR4 RAM, or 16GB per slot. The following memory speeds are supported: 3333 (OC), 3110 (OC), 3000 (OC), 2750 (OC), 2666 (OC), 2600 (OC), 2400 (OC), 2200 (OC), and 2133 MHz. The X99A also has a total of 10 x SATA III 6 Gb/s ports (two reserved for the SATA Express port), 1 x SATA Express port, 1 x M.2 port, 2 x USB 3.1 ports, 10 x USB 3.0 ports, and 6 x USB 2.0 ports. To provide data redundancy, RAID 0, 1, 5, and 10 modes are supported. For PCIe expansion, there are four PCIe 3.0 x16 slots and two PCIe 2.0 x1 slots. The X99A has also been optimized for multiple graphics cards and has multi-GPU support for AMD 3-Way CrossFire technology and NVIDIA 3-Way SLI technology.

Network connectivity is achieved using Intel I210-AT Gigabit LAN which supports wired Gigabit Ethernet speeds. The integrated Realtek ALC1150 audio codec supports 7.1 channel HD audio and S/PDIF out. The X99A has also been designed with Military Class 4 components, including DrMOS, Hi-c CAPs, Super Ferrite Chokes, Dark CAPs, circuit protection, humidity protection, temperature protection, ESD protection, and EMI protection. There is also a software suite that includes Command Center, Live Update 6, an unlimited RAMdisk, and more. This motherboard is protected by a limited 3-year warranty.

Optimized for Multiple Graphics Cards
With a large number of PCI-Express 3.0 x16 slots for every MSI motherboard, you get to choose optimal placement for your graphics cards for better fitting and airflow up to Quad SLI/CF
USB 3.1
Faster than SATA III, USB 3.1 allows for speeds up to 10 Gb/s, doubling the speed compared to USB 3.0 and up to 20x faster than legacy USB 2.0

  • Up to 2x faster than USB 3.0
  • Up to 20x faster than USB 2.0
  • Up to 10 Gb/s data transfer bandwidth
  • Boost transfer rate between your PC and external storage devices
  • M.2
    M.2 is the successor to mSATA, offering a performance increase up to 10 Gb/s. M.2 is packed in a small form factor and is compatible with three different sizes to fit most storage solutions
    SATA Express
    SATA Express is a solution in high speed storage through PCI Express, helping to provide more bandwidth for the SSDs. Flexible solutions with an M.2 to SATA Express converter are also available
    OC Engine
    Have you run into unstable situations when pushing your CPU to the limit? This occurs because the internal clocks are linked through the 100 MHz BCLK strap. Thanks to an integrated Clock Generator, MSI motherboards support more flexible BCLK adjustments, from 100 / 125 / 167 MHz straps. Using these straps helps prevent system crashing while overclocking
    MSI engineers have made sure you can enjoy high speed DDR4 compatibility. DDR4 brings higher memory speeds with power usage as low as 1.05 V
    Audio Boost
    Get ready for ear-drum shattering sound, with MSI Audio Boost. With Audio Boost we're delivering high audio quality so you can enjoy crystal clear sound and music in games.

    Because the complete audio circuitry is isolated from other features, you'll enjoy less interference and more stability. The built-in headphone amplifier also allows you to use studio-grade headgear to get improved sound out of your system

  • Studio level integrated 600 ohms headphone amplifier
  • Golden audio jacks for pure audio signals
  • EMI shielded audio coded
  • High quality audio capacitors
  • Illuminated audio PCB separation
  • Intel Gigabit LAN
    This motherboard achieves network connectivity using an Intel I210-AT Gigabit Ethernet port. Optimized for multimedia and gaming use, it helps deliver a stable and fast network connection
    OC Essentials
    OC Essentials are small set of tools that help get the best performance out of your motherboard. These features increase stability, assist in trouble shooting, allow you to keep your complete system in check, and allow for simple management. These features include:

  • Clear CMOS
  • V-Check Points Lite
  • Easy Buttons 3
  • Multi-BIOS II
  • Military Class 4
    Military Class 4 helps provide high quality components. The Hi-c Cap, Super Ferrite Choke, and Solid CAPs will help make sure that your PC runs more stable under extreme gaming conditions.

    DrMOS - DrMOS is a Mosfet which is used to deliver power for the CPU. DrMOS does not waste much power, stays cool, and is power efficient. Because DrMOS is a 3-in-1 chip, it is able to deliver more power with fewer components

    Hi-c CAP - A Hi-c CAP is a very small, but efficient capacitor. It helps ensure enough spacing around a CPU socket to install larger coolers and also allows for 93% energy efficiency

    Super Ferrite Chokes - Super Ferrite Chokes use a ferrite core that is super-permeable. This allows the chokes to run to a 35°C lower temperature, have a 30% higher current capacity, a 20% improvement in power efficiency, and better overclocking power stability

    Dark CAPs - With their aluminum core design, Dark CAPs have been a staple in high-end mainboard designs and help provide lower Equivalent Series Resistance (ESR) over its 10+ year lifespan
    Circuit Protection - Carefully selected materials, multiple PCB layers, and shielding result in effective motherboard circuit protection

    ECO Power - The MSI ECO Center can physically but the power to unused chips to help save up to 29% power usage

    Humidity Protection - The 10% reduction in moisture absorption helps prevent "Conductive Anodic Filament." Untreated PCB's can have up to a 10x higher failure rate

    High Temperature Protection - All key components used in MSI motherboards have passed military testing, helping to ensure stable operations in harsh environments

    ESD Protection - Each and every I/O port is protected against the hazards of Electro Static Discharge

    EMI Protection - MSI motherboards comply with stringent American FCC regulations and help reduce the impact of Electromagnetic Interference
    OC Genie 4
    With the one-second overclocking option OC Genie, we're giving you increased performance. Just hit the button and your PC gets another adrenalin shot straight away. Give your system a performance boost with ease
    Click BIOS 4
    MSI Click BIOS 4 is a UEFI BIOS with optimizations for Windows 8. It reacts faster, runs smoother, and has improved mouse support, and more
    Command Center
    MSI's Command Center software is a powerful tool to help push your motherboard to the max. With an intuitive touch-ready interface, Command Center allows users to tune settings to help increase system stability, maximize overclocking performance, and adjust cooling features

    Live Update 6
    MSI Live Update automatically downloads and installs drivers, BIOS, and software updates

    Unlimited RAMdisk
    MSI Command Center integrated an unlimited RAMdisk. With a RAMdisk, you can create a virtual drive from your system memory, helping to enable speeds up to 20x faster than an SSD. With a RAMdisk, you can speed up system performance, load complete game images, as well as speed up games, apps, and Internet browsers

    ECO Center
    ECO Center lets you disable unused chips and functions on your motherboard. By cutting off the power entirely, your motherboard will run up to 29% more efficiently
    Smart Utilities
    The MSI Smart Utilities application helps to easily setup, configure, and boost your system's performance and more through Intel Smart Response. Please note that this feature only works on platform and models that supports Intel Smart Response technology
    Fast Boot
    MSI Fast Boot helps to make your system boot quickly. MSI Fast Boot also features a GO2BIOS button. Simply click it to restart your PC and go straight to the system BIOS
    In the Box
    MSI X99A SLI KRAIT EDITION Motherboard
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description

    MSI X99A specs

    CPU Supports Intel Core i7 Extreme Edition processors for the LGA2011-3 socket
    Chipset Intel X99 Express Chipset
    Memory • Supports eight DDR4 2133 / 2200 (OC) / 2400 (OC) / 2600 (OC) / 2666 (OC) / 2750 (OC) / 3000 (OC) / 3110 (OC) and 3333 (OC) MHz DRAM
    - 128 GB max
    - Quad channel memory architecture
    - Supports non-ECC, unbuffered memory
    Slots • 4 x PCIe 3.0 x16 slots, supporting up to 3-way mode
    - 1-way mode: x16/x0/x0/x0
    - 2-way mode: x16/x16/x0/x0, x16/x8/x0/x0 (for 40-lane CPUs)
    - 3-way mode: x16/x16/x0/x8, x8/x8/x8/x0 (for 28-lane CPUs)
    • 2 x PCIe 2.0 x1 slots
    Multi-GPU Support • Supports 3-Way AMD CrossFire Technology
    • Supports 3-Way NVIDIA SLI Technology
    • Supports 8.1, 8, and 7
    Storage • Intel X99 Express Chipset
    - 10 x SATA 6 Gb/s ports (2 ports are reserved for the SATA Express port)
    - SATA 1~6 support RAID 0, 1, 5, and 10
    - SATA 7~10 ports only support IDE and AHCI modes
    - Supports Intel Smart Response Technology (Windows 8.1, 8, and 7)
    • 1 x SATA Express port
    • 1 x M.2 port
    - Supports M.2 SATA 6 Gb/s module or M.2 PCIe module up to 32 Gb/s
    - M.2 port supports 4.2 / 6 / 8 cm module
    - M.2 PCIe module does not support RAID 0, RAID 1, RAID 5, and RAID 10

    Please note that the SATA Express port or SATA 5~6 will not be available when the M.2 (Gen2 x2) module is installed in the M.2 port. Also, Intel RST does not support PCIe M.2 SSDs with Legacy ROM
    USB • Intel X99 Express Chipset
    - 6 x USB 3.0 ports (2 ports on the back panel, 4 ports available through the internal USB 3.0 connectors)
    - 6 x USB 2.0 ports (2 ports on the back panel, 4 ports available through the internal USB 2.0 connectors)

    • ASMedia ASM1142 Chipset
    - 2 x USB 3.1 ports on the back panel

    • VIA VL805
    - 4 x USB 3.0 ports on the back panel
    Audio • Realtek ALC1150 Codec
    - 7.1-Channel High Definition Audio
    - Supports S/PDIF output
    LAN 1 x Intel I210-AT Gigabit LAN
    Internal I/O Connectors - 1 x 24-pin ATX main power connector
    - 1 x 8-pin ATX 12 V power connector
    - 1x 4-pin ATX 12 V power connector
    - 10 x SATA 6 Gb/s connectors
    - 2 x USB 2.0 connectors (supports an additional 4 USB 2.0 ports)
    - 2 x USB 3.0 connectors (supports an additional 4 USB 3.0 ports)
    - 2 x 4-pin CPU fan connectors
    - 3 x 4-pin system fan connectors
    - 1 x Clear CMOS jumper
    - 1 x Front panel audio connector
    - 2 x System panel connectors
    - 1 x TPM module connector
    - 1 x Chassis Intrusion connector
    - 1 x GO2BIOS button
    - 1 x Power button
    - 1 x Reset button
    - 1 x OC Genie button
    - 1 x Multi-BIOS switch
    - 1 x OC Genie mode switch
    - 1 x Slow mode booting switch
    - 1 x Slow mode booting jumper
    Back Panel I/O Ports - 1 x PS/2 keyboard/mouse combo port
    - 1 x Clear CMOS button
    - 2 x USB 2.0 ports
    - 6 x USB 3.0 ports
    - 2 x USB 3.1 ports
    - 1 x LAN (RJ-45) port
    - 1 x Optical S/PDIF OUT connector
    - 5 x OFC audio jacks
    BIOS • The motherboard BIOS provides "Plug & Play" BIOS which detects the peripheral devices and expansion cards of the board automatically
    • The motherboard provides a Desktop Management Interface (DMI) function which records your motherboard specifications.
    Mounting 9 mounting holes
    Dimensions 12.0 x 9.6" / 30.5 x 24.4 cm
    ATX form factor
    Packaging Info
    Package Weight 3.75 lb
    Box Dimensions (LxWxH) 13.6 x 10.7 x 2.6"

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