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MSI

MSI MAG X870 TOMAHAWK WIFI AMD motherboard & Ryzen 9 9950X CPU combo

SKU CH-8G99-HW4AD

Pre-built AM5 motherboard and 16-core Ryzen 9 9950X CPU with 5.7 GHz boost, DDR5 memory support to 8400 MT/s, PCIe 5.0 x16 graphics slot, four M.2 connectors, Wi-Fi 7, 5G LAN and USB 40G

  • CPU socketAM5
  • ChipsetAMD X870
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM256 GB
  • Memory channelsDual Channel
  • Ryzen 9 9950X delivers 16 cores and 32 threads for heavy workloads
  • DDR5 memory overclocked to 8400 MT/s with MSI Memory Boost
  • PCIe 5.0 x16 and dual M.2 slots at 5.0 x4 for fastest GPU and storage
  • 5G LAN plus Wi-Fi 7 with 320 MHz channel for 5.8 Gbps wireless
  • Extended heatsink and 80A SPS VRM keep the 5.7 GHz boost stable

Combo for high-end AM5 builds

This bundle pairs the MSI MAG X870 TOMAHAWK WIFI motherboard with the AMD Ryzen 9 9950X processor. The CPU delivers 16 cores and 32 threads based on the Zen 5 architecture with a 5.7 GHz max boost clock. The board uses the X870 chipset and AM5 socket to support the platform. It targets enthusiasts building workstations or high-performance gaming systems.

Fits AM5 cases with DDR5 and PCIe 5.0 devices

The board provides four 288-pin DDR5 slots supporting up to 256 GB in dual-channel mode. Memory Boost technology enables speeds of 8400 MT/s when overclocked. A primary PCIe 5.0 x16 slot connects directly to the CPU for graphics cards. Two CPU-linked M.2 slots accept 2280 and 2260 drives at PCIe 5.0 x4 speeds. Two additional chipset M.2 slots and four SATA 6 Gb/s ports handle extra storage. The EZ PCIe Release button simplifies graphics card swaps. Connectivity includes a USB 40 Gbps port, 5 Gbps LAN, and Wi-Fi 7 with a 320 MHz channel.

Sustained speed from 80A VRM and extended heatsinks

An 80 A SPS VRM design supplies stable power to the 16-core CPU during prolonged workloads. Extended PWM heatsinks dissipate heat across a larger surface area to maintain clock rates. The Realtek ALC4080 codec drives 7.1-channel audio for monitoring. The 5 Gbps LAN and Wi-Fi 7 links sustain high throughput for large file transfers and streaming. DDR5-5600 native support provides a reliable baseline for memory-intensive tasks.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $805.99
Pricier than about 79% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameMSI
Model nameMAG X870 TOMAHAWK WIFI+R9 9950X
Processor
CPU socketAM5
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 GB
Memory channelsDual Channel
ECC supportNon-ECC
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsM2_1 slot (From CPU)
- Supports up to PCIe 5.0 x4
- Supports 2280/110 storage devices
M2_2 slot (From CPU)
- Supports up to PCIe 5.0 x4
- Supports 2260/80 storage devices
M2_3 slot (From Chipset)
- Supports up to PCIe 4.0 x2
- Supports 2260/80 storage devices
M2_4 slot (From Chipset)
- Supports up to PCIe 4.0 x4
- Supports 2260/80 storage devices
* The M2_2 slot will be unavailable when using Ryzen 5 8500G processor.
** PCI_E3 slot will run at x2 speed when installing device in the M2_3 slot
SATA and RAID supportSupports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
Audio & video
Audio chipRealtek ALC4080
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek 8126-VB
Maximum network speed5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsPCI_E1 slot (From CPU) Supports up to PCIe 5.0 x16
PCIe x4 slotsPCI_E3 slot (From Chipset X870) Supports up to PCIe 4.0 x4
PCIe x1 slotsPCI_E2 slot (From Chipset X870) Supports up to PCIe 3.0 x1
Power
Power connectors1 × 24-pin Power Connector (ATX_PWR)
2 × 8-pin Power Connector (CPU_PWR)
1 × 8-pin Power Connector (PCIE_PWR)
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
More details
BIOS1x 256 Mb flash
UEFI AMI BIOS
ACPI 6.4, SMBIOS 3.7
Multi-language

Other versions of this model

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Questions about this item

Will the 80A SPS VRM and extended heatsink handle the 9950X at 5.7 GHz boost without throttling?

The 80A SPS VRM with extended PWM heatsink is designed to keep the 16-core, 32-thread 9950X running at its 5.7 GHz max boost under full load.

Which M.2 slots support Gen 5 speeds and what drive lengths fit each?

M2_1 and M2_2 run from the CPU at PCIe 5.0 x4; M2_1 takes 2280/110 drives, M2_2 takes 2260/80 drives.

Does the board include Wi-Fi 7 and 5 Gbps LAN out of the box?

Yes — Wi-Fi 7 with 320 MHz channel for up to 5.8 Gbps and a Realtek 8126-VB 5 Gbps LAN port are built in.

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