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Black ATX motherboard with silver heatsinks and a silver Ryzen 9 9950X CPU in the AM5 socket

MSI

MSI MAG X870E TOMAHAWK WIFI AMD motherboard & Ryzen 9 9950X CPU combo

SKU CH-V7SA-KN9TX

X870E ATX motherboard paired with a 16-core 32-thread Ryzen 9 9950X, four DDR5 slots for 256 GB, PCIe 5.0 graphics and M.2, 5 Gb LAN, Wi-Fi 7 and USB 40 Gbps

  • CPU Socket TypeAM5
  • CPU TypeSupports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processo
  • ChipsetAMD X870E
  • Number of Memory Slots4x288pin (DDR5)
  • Memory Standard4x DDR5 UDIMM, Maximum Memory Capacity 256GB Memory Support
  • Maximum Memory Supported256GB

CPU +Ryzen 9 9950X

  • 16 cores and 32 threads power heavy multitasking with the Ryzen 9 9950X
  • DDR5 memory scales to 8400 MT/s overclocked across four slots for 256 GB capacity
  • PCIe 5.0 x16 slot and two CPU-linked M.2 sockets deliver 128 GB/s bandwidth for GPU and storage
  • 5G LAN plus Wi-Fi 7 with 320 MHz channels reaches 5.8 Gbps wireless throughput
  • Tool-free EZ PCIe Release and EZ M.2 Shield Frozr II simplify hardware swaps

Combo Platform AM5 X870E

This bundle pairs an AMD X870E chipset motherboard with a Ryzen 9 9950X processor. The board supports AM5 socket CPUs from the 7000, 8000 and 9000 series. Four DDR5 slots accept up to 256 GB of memory at speeds up to 8400 MT/s when overclocked. A single USB4 port provides 40 Gbps connectivity.

Suitability High-End Workstation Builders

The 16-core, 32-thread CPU reaches a 5.7 GHz max boost and offers 64 MB L3 cache for heavy multi-threaded workloads. Wi-Fi 7 with 320 MHz channels and 5G LAN cover demanding network needs. Builders who need fewer cores or lower memory capacity should consider a different processor.

Deciding Spec PCIe 5.0 M.2 From CPU

Two M.2 slots connect directly to the CPU and run at PCIe 5.0 x4, delivering up to 128 GB/s bandwidth for the fastest storage devices. The remaining two M.2 slots and the x16 graphics slot use PCIe 4.0 or 3.0 from the chipset. If your workflow requires more than two direct CPU-attached Gen5 drives, this platform will not meet that requirement.

Highlights

  • 16 cores and 32 threads power heavy multitasking with the Ryzen 9 9950X
  • DDR5 memory scales to 8400 MT/s overclocked across four slots for 256 GB capacity
  • PCIe 5.0 x16 slot and two CPU-linked M.2 sockets deliver 128 GB/s bandwidth for GPU and storage
  • 5G LAN plus Wi-Fi 7 with 320 MHz channels reaches 5.8 Gbps wireless throughput
  • Tool-free EZ PCIe Release and EZ M.2 Shield Frozr II simplify hardware swaps

Specifications

BrandMSI
SeriesMAG X870E TOMAHAWK WIFI+R9 9950X
ModelMAG X870E TOMAHAWK WIFI+R9 9950X
Part NumberMAG X870E TOMAHAWK WIFI
CPU Socket TypeAM5
CPU TypeSupports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors
Socket AM5
ChipsetAMD X870E
Number of Memory Slots4x288pin (DDR5)
Memory Standard4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support DDR5 8400 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s
Ryzen™ 9000 Series Processors max. overclocking frequency:
• 1DPC 1R Max speed up to 8400+ MT/s
• 1DPC 2R Max speed up to 6400+ MT/s
• 2DPC 1R Max speed up to 6400+ MT/s
• 2DPC 2R Max speed up to 4800+ MT/s
Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPO™
Supports Dual-Channel mode
Supports Non-ECC, Un-buffered memory
Supports CUDIMM, Clock Driver bypass mode only*
* CUDIMM support and POR boot frequency may vary by CPU series, with manual
Maximum Memory Supported256GB
Channel SupportedDual Channel
ECC SupportedNon-ECC
PCI Express 5.0 x161 x PCI Express 5.0 x16
PCI Express 4.0 x161 x PCI Express 4.0 x16
PCI Express 3.0 x161 x PCI Express 3.0 x16
Serial ATA (SATA)4 x SATA 6Gb/s
M.24x M.2
M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 22110/2280 devices
M.2_2 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices
M.2_3 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
M.2_4 Source (From Chipset) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
4x SATA 6G
M.2_1 slot (From CPU)
• Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series processors)
• Supports up to PCIe 4.0 x4 (For Ryzen™ 8000 Series processors)
M.2_2 slot (From CPU)
• Supports up to PCIe 5.0 x4 (For Ryzen™ 9000/ 7000 Series proc
Audio ChannelsRealtek® ALC4080 Codec
7.1-Channel USB High Performance Audio
Supports up to 32-bit/384kHz playback on front panel
Supports S/PDIF output
Max LAN Speed1x Realtek® 8126 5G LAN
Wireless LANWi-Fi 7
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (320MHz) up to 5.8Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax/ be
Supports Bluetooth® 5.4**, MLO, 4KQAM
* 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2.
** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.
Back I/O PortsClear CMOS Button
USB 10Gbps Type-A
USB 5Gbps Type-A
USB 2.0
5G LAN
Wi-Fi / Bluetooth
Audio connectors
Flash BIOS Button
HDMI™
USB 40Gbps Type-C
USB 10Gbps Type-C
USB 10Gbps Type-A
Other Connectors1x Power Connector(ATX_PWR)
2x Power Connector(CPU_PWR)
1x Power Connector(PCIE_PWR 8pin)
1x Front Type-C Quick Charge Connector(PD_PWR1)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
6x System Fan
1x EZ Conn-header (JAF_2)
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
3x Addressable V2 RGB LED connector (JARGB_V2)
1x RGB LED connector(JRGB)
1x TPM pin header(Support TPM 2.0)
4x USB 2.0 ports
4x USB 5Gbps Type A ports
1x USB 20Gbps Type C ports
Form FactorATX
Dimensions (W x L)243.84mmx304.8mm
Windows 11Support for Windows® 11 64-bit
FeaturesSupports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors
Supports DDR5 Memory, Dual Channel DDR5 8400+ MT/s (OC)
Ultra Performance: 14+2+1 Duet Rail Power System, dual 8-pin CPU power connectors, Core Boost, Memory Boost, 8-layer PCB made by 2oz thickened copper and server-grade level material
Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads and EZ M.2 Shield Frozr II are built for high performance system and non-stop experience
EZ DIY: EZ M.2 Shield Frozr II, EZ M.2 Clip II, EZ PCIe Release and EZ Antenna
Lightning Fast Game

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What DDR5 memory speed and capacity do I need to install for the Ryzen 9 9950X to run at its rated 5600 MT/s?

Fit four DDR5 UDIMM modules up to 256 GB total; the board runs JEDEC 5600 MT/s out of the box and can be overclocked to 8400 MT/s with 1DPC 1R kits.

Will my existing PCIe 4.0 graphics card and PCIe 3.0 add-in cards work in the three x16 slots?

Yes — the top slot is PCIe 5.0 x16, the second is PCIe 4.0 x16 and the third is PCIe 3.0 x16, so older cards run at their native speeds.

How can I confirm the Wi-Fi 7 module is delivering the advertised 5.8 Gbps link after setup?

Connect to a 6 GHz 320 MHz channel; the OS link speed should show up to 5.8 Gbps and the Realtek 8126 5G LAN port will negotiate 5 Gbps on a wired test.

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