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Rectangular ATX motherboard in matte black with silver heatsinks, four DDR4 slots, three long PCIe x16 slots, two short PCIe x1 slots

MSI

MSI X99A RAIDER LGA 2011-v3 Intel X99 DDR4 128GB ATX motherboard

SKU CH-QEAJ-STK35

Supports LGA 2011-v3 Intel Core i7 CPUs with four-channel DDR4 up to 3333 MHz and 128GB capacity on an ATX board with 10 SATA III ports, 7.1 audio.

  • CPU Socket TypeLGA 2011-v3
  • CPU TypeIntel Core ™ i7 Delicate Edition processors with new LGA 201
  • ChipsetIntel X99
  • Memory StandardSupports four-channel DDR4 2133/2200 (OC)/2400 (OC)/2600 (OC
  • Maximum Memory Supported128GB
  • PCI Slots3 PCIe 3.0 x16 slots (PCI_E1, 3, 5, 6), up to 3-way mode - 1
  • Supports up to 128GB DDR4 for heavy multitasking
  • Four-channel DDR4 up to 3333MHz OC for high bandwidth
  • Three PCIe 3.0 x16 slots enable multi-GPU configurations
  • Ten SATA III plus SATA Express for extensive storage
  • Intel I218 Gigabit LAN ensures reliable wired networking

Platform and audience

The MSI X99A RAIDER is an ATX motherboard built around the Intel X99 chipset and the LGA 2011-v3 socket. It targets enthusiasts and workstation builders who need a high-core-count Intel Core i7 platform with extensive expansion capability. The board delivers a feature set aimed at multi-threaded workloads and multi-GPU configurations.

Capacity and headroom

Four memory channels support DDR4 speeds from 2133 MHz up to 3333 MHz when overclocked, with a maximum capacity of 128 GB. Three PCIe 3.0 x16 slots operate in x16, x16/x16, or x8/x16/x8 electrical layouts depending on the CPU lane count, while two PCIe 2.0 x1 slots provide additional peripheral bandwidth. Ten SATA III ports, one SATA Express connection and a single M.2 interface give broad storage options.

Thermals noise and power

The Intel I218 Gigabit LAN controller and Realtek ALC892 7.1-channel audio codec are low-power integrated components that add minimal heat. Power delivery is distributed across the standard ATX and CPU power connectors, keeping VRM loads within typical enthusiast ranges. With no active chipset fan mentioned, system noise depends entirely on the CPU cooler and case airflow chosen by the builder.

Highlights

  • Supports up to 128GB DDR4 for heavy multitasking
  • Four-channel DDR4 up to 3333MHz OC for high bandwidth
  • Three PCIe 3.0 x16 slots enable multi-GPU configurations
  • Ten SATA III plus SATA Express for extensive storage
  • Intel I218 Gigabit LAN ensures reliable wired networking

Specifications

BrandMSI
SeriesMSI X99A RAIDER
ModelMSI X99A RAIDER
CPU Socket TypeLGA 2011-v3
CPU TypeIntel Core ™ i7 Delicate Edition processors with new LGA 2011-3 slots
ChipsetIntel X99
Memory StandardSupports four-channel DDR4 2133/2200 (OC)/2400 (OC)/2600 (OC)/2666 (OC)/2750 (OC)/3000 (OC)/3110 (OC)/3333 (OC) MHz memory
Maximum Memory Supported128GB
PCI Slots3 PCIe 3.0 x16 slots (PCI_E1, 3, 5, 6), up to 3-way mode
- 1-way mode: x16/x0/x0
- 2-way mode: x16/x16/x0 *, 16/x8/x0 **
- 3-way mode: x8/x16/x8 *, x8/x8/x8 **
2 PCIe 2.0 x1 slots (PCI_E2, 4)
* Limited to CPUs that support 40 PCIe channel specifications
Limited to CPUs that support 28 PCIe channel specifications.
SATA RAID1XM.2 interface, 1xSATA Express interface, 10xSATA III interface
Audio ChipsetRealtek ALC892 Decoder Chip
- 7.1 channel high-quality sound effects
- Supports S/PDIF output
LAN Chipset1 x Intel I218 Gigabit network controller
Onboard USBIntel X99 Express Chipset
- 6 USB 3.0 ports (4 on the backplane, 2 supported through built-in USB 3.0 connectors *)
- 6 USB 2.0 ports (4 on the back panel, 2 supported through built-in USB 2.0 connectors)
ASMedia ASM1142
- 2 USB 3.0 ports located on the backplane
* Built-in JUSB1 port supports MSI Super Charger

Questions about this item

Will my existing DDR4-2133 modules run at their rated speed on the X99A RAIDER's four-channel memory controller?

Yes, the board natively supports DDR4 2133 MHz without overclocking, so your current modules will operate at their rated frequency across all four channels.

How can I verify the Realtek ALC892 audio and Intel I218 LAN are functioning after the first boot?

Enter the UEFI BIOS and confirm both controllers are listed as enabled; then boot into the OS, open Device Manager, and check that the audio device shows Realtek High Definition Audio and the network adapter shows Intel I218 Gigabit.

Which cables and brackets come in the box so I know what to order separately?

The package includes the motherboard, a CMOS battery, one SATA cable and the rear I/O shield; you will need to source additional SATA cables, any M.2 mounting screws and CPU cooler brackets yourself.

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