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Black ATX motherboard with rear-mounted connectors and silver heatsinks, paired with a Ryzen 9 9950X3D CPU in AM5 socket

MSI

MSI MAG X870E TOMAHAWK MAX WIFI PZ AMD motherboard & Ryzen 9 9950X3D CPU combo

SKU CH-HEWC-E8X9V

AM5 motherboard and Ryzen 9 9950X3D CPU bundle with back-connect design, DDR5 memory, PCIe 5.0, Wi-Fi 7 and 5G LAN

  • CPU Socket TypeAM5
  • ChipsetAMD X870E
  • Number of Memory Slots4x288pin (DDR5)
  • Maximum Memory Supported256GB
  • Channel SupportedDual Channel
  • ECC SupportedNon-ECC

CPU +Ryzen 9 9950X3D

  • Cleaner front view with back-connect design
  • 64MB BIOS enables future CPU compatibility
  • OC Engine clock generator unlocks CPU power
  • USB 4 port delivers 40Gbps transfer speed
  • Tool-less EZ M.2 Shield Frozr II simplifies SSD installation

AM5 combo with X870E chipset

This motherboard and CPU combination pairs the MAG X870E TOMAHAWK MAX WIFI PZ board with a Ryzen 9 9950X3D processor on the AM5 socket. The X870E chipset supports dual-channel DDR5 memory up to 256 GB across four 288-pin slots. It targets builders who want a high-core-count CPU and a feature-rich platform for gaming or content creation workloads.

Back-connect layout with quadruple M.2 and USB4

The back-connect design moves primary connectors to the rear for cleaner cable routing inside the case. Four M.2 slots provide PCIe 5.0 x4 on two CPU-linked sockets and PCIe 4.0 x4 on the remaining two, supporting 22110, 2280 and 2260 form factors. A built-in USB4 port delivers 40 Gbps throughput, while 5 Gbps LAN and Wi-Fi 7 handle wired and wireless networking. EZ PCIe Release and tool-less M.2 shields simplify component swaps.

64 MB BIOS and OC Engine for sustained tuning

A 64 MB BIOS ROM stores extensive microcode for current and future Ryzen 9000 and 7000 series CPUs with better compatibility. The OC Engine clock generator helps maintain stable frequencies during extended heavy loads. Reinforced PCIe 5.0 x16 and quadruple M.2 heatsinks manage thermals so storage and graphics performance remain consistent over long sessions.

Highlights

  • Cleaner front view with back-connect design
  • 64MB BIOS enables future CPU compatibility
  • OC Engine clock generator unlocks CPU power
  • USB 4 port delivers 40Gbps transfer speed
  • Tool-less EZ M.2 Shield Frozr II simplifies SSD installation

Specifications

BrandMSI
SeriesMAG X870E TOMAHAWK MAX WIFI PZ+9 9950X3D
ModelMAG X870E TOMAHAWK MAX WIFI PZ+9 9950X3D
CPU Socket TypeAM5
ChipsetAMD X870E
Number of Memory Slots4x288pin (DDR5)
Maximum Memory Supported256GB
Channel SupportedDual Channel
ECC SupportedNon-ECC
Buffer SupportedUn-buffered
Memory FeatureSupports CUDIMM, Clock Driver bypass mode only
PCI Express 5.0 x16PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_E1 slot
- Supports PCIe 5.0 x16 (For Ryzen 9000/ 7000 Series processors)
- Supports PCIe 4.0 x8 (For Ryzen 8700/ 8600/ 8400 Series processors)
- Supports PCIe 4.0 x4 (For Ryzen 8500/ 8300 Series processor)
PCI Express x4PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset)
PCI Express x1PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
Serial ATA (SATA)4 x SATA 6Gb/s
M.2M.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
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 processors)
- Supports up
SATA RAIDSupports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0, RAID 1, RAID 5 and RAID 10 for M.2 NVMe storage devices
*RAID 5 configuration is only supported by Ryzen 9000 series processors.
*RAID 10 for M.2 NVMe storage devices is only supported by Ryzen 9000/7000 series processors.
Audio ChipsetRealtek ALC4080 Codec
7.1-Channel USB High Performance Audio
Supports up to 32-bit/384kHz playback on front panel
Supports S/PDIF output
Audio Channels7.1 Channels
Max LAN Speed5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Onboard USB4 x USB 2.0 ports
4 x USB 5Gbps Type A ports
1 x USB 20Gbps Type C ports
Other Connectors1 x CPU Fan
1 x Combo Fan (Pump_Sys Fan)
6 x System Fan
1 x EZ Conn-header (JAF_2)
2 x Front Panel (JFP)
1 x Chassis Intrusion (JCI)
1 x Front Audio (JAUD)
3 x Addressable V2 RGB LED connector (JARGB_V2)
1 x RGB LED connector(JRGB)
1 x TPM pin header(Support TPM 2.0)
2 x Direct OC Jumper (JBCLK)
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x Power Connector(ATX_PWR)
2 x Power Connector(CPU_PWR)
1 x Power Connector(PCIE_PWR 8pin)

Other versions of this model

5 more in the same range

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

Questions about this item

Will this combo fit in a standard ATX case with back-connect cable routing?

The board uses an ATX form factor with a back-connect design that moves all I/O and power connectors to the rear, so it fits standard ATX cases and simplifies cable routing behind the motherboard tray.

Which DDR5 modules can I install and how much total capacity is supported?

Four 288-pin DDR5 slots support up to 256 GB total in dual-channel mode; CUDIMM modules are accepted in clock-driver bypass mode, while ECC and registered DIMMs are not supported.

What M.2 drive lengths and speeds are available across the four slots?

Two CPU-linked slots run PCIe 5.0 x4 — one takes 22110 or 2280 drives, the other 2280 or 2260 — while the two chipset-linked slots run PCIe 4.0 x4 for additional NVMe storage.

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