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ATX motherboard with dark heatsinks and AM5 socket

MSI Open box

MSI MAG X870 TOMAHAWK WIFI AMD motherboard open box

SKU CH-VJ1Z-EP0N5 MPN MAG X870 TOMAHAWK WIFI

An ATX motherboard for AMD Ryzen 7000, 8000 and 9000 series processors with an 80A SPS VRM, DDR5 support up to 8400 MT/s, PCIe 5.0 x16, four M.2 slots, Wi‑Fi 7, 5G LAN and a USB 40G port

  • ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD X870
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 /
  • Supports Ryzen 7000, 8000 and 9000 series processors on AM5 socket
  • 80A SPS VRM with extended heatsink keeps high-end CPUs running at full speed
  • DDR5 memory boost up to 8400 MT/s with AMD EXPO profiles
  • PCIe 5.0 x16 graphics slot plus two CPU-linked M.2 Gen5 drives
  • Wi-Fi 7 with 320 MHz channel plus 5G LAN for fast networking

AM5 platform for Ryzen 7000, 8000 and 9000 series

This ATX motherboard uses the AMD X870 chipset and an AM5 socket. It accepts Ryzen 7000, 8000 and 9000 series processors with an 80A SPS VRM design. Four DDR5 slots support up to 256GB in dual-channel mode with AMD EXPO profiles up to 8400 MT/s.

Builders who need PCIe 5.0 graphics and storage

The board provides a PCIe 5.0 x16 slot from the CPU and two CPU-linked M.2 slots at PCIe 5.0 x4. A 5G LAN port and Wi-Fi 7 with 320MHz channels give high-throughput networking. Users staying with PCIe 4.0 graphics or SATA-only drives can save money on a simpler chipset.

PCIe 5.0 x16 graphics slot from the CPU

The primary expansion slot runs at PCIe 5.0 x16 directly from the processor. This single specification decides whether a next-generation graphics card can operate at its full link width on this motherboard.

How it compares

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

Price $215.99
Typical for this category: the median of 1,906 items is $224.49.

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Specifications

Product
Brand nameMSI
Model nameMAG X870 TOMAHAWK WIFI
Processor
ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
CPU socketAM5
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400
Max supported RAM256 GB
Memory channelsDual Channel
Memory profilesAMD EXPO
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
Shipping weight2.31 kg
Package size348 × 292 × 79 mm
More details
BIOS1x 256 Mb flash
UEFI AMI BIOS
ACPI 6.4, SMBIOS 3.7
Multi-language

Questions about this item

How does the 8400+ MT/s DDR5 rating translate when I install memory?

The board supports DDR5 speeds up to 8400 MT/s through AMD EXPO profiles, so kits rated at that speed can run at their advertised frequency without manual tuning.

What does the USB4 40Gbps port actually limit in everyday use?

The USB4 port provides up to 40Gbps bandwidth for external storage or displays, with real-world throughput depending on the connected device and cable quality.

What clearance do the four M.2 slots need for heatsinks or long drives?

Two CPU-linked slots accept 2280 and 110 mm drives, while the chipset-linked slots take 2280 and 2260 mm drives; all four sit under the board's integrated M.2 shields.

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