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PC parts / Motherboards

MSI MAG X870 TOMAHAWK WIFI
CPU socket
AM5
Chipset
AMD X870
Form factor
ATX
M.2 slots
4

62 of 78 fields known.

At a glance

Ports

  • 2 USB-C USB4
  • USB-C USB 3.2 Gen 2
  • 2 USB-A USB 3.2 Gen 2
  • 3 USB-A USB 3.2 Gen 1
  • 4 USB-A USB 2.0
  • HDMI 2.1
  • Ethernet (RJ45)
  • 2 3.5 mm audio
  • Optical S/PDIF
  • USB-C header
  • 2 USB 3 header (19-pin)
  • 2 USB 2.0 header (9-pin)

All specs

SourceCalculated

General

Announced
Not available
Status
Not available
Predecessor
Not available
Successor
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Segment
Gaming3Retailer pagescan.co.uk/products/msi-mag-x870-tomahawk-wifi-amd-x870-am5-ddr5-pcie-50-4x-m2-5g-wifi7-usb-40-usb-32-aplusc-aRead 14 October 2026Scan quotes MSI's text: designed for gamers with a stable, durable and DIY friendly foundation for their PC builds.
Board revision
Not available

Platform

CPU socket
AM51Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026
Chipset
AMD X8701Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026
Supported processors
AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Specifications chapter, page 17: Ryzen 9000, 8000 and 7000 Series Desktop Processors. The manual refers to msi.com for the newest support status. Read on 2026-10-14.

Board

Front and side, drawn to scale.

Form factor
ATX1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026
Board dimensions
Width244Height305mm(9.6 × 12 in)1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Specifications chapter: ATX form factor, 9.6 in. x 12 in. (244 mm x 305 mm).
Back-connect design
No1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026The component overview shows the usual front-side connector layout. The board is not an MSI Project Zero model.

Power delivery

Power stage layout
14+2+14Reviewkitguru.net/components/motherboard/leo-waldock/msi-mag-x870-tomahawk-reviewRead 14 October 2026Key features list, as in MSI's text: 14+2+1 digital power phases with dual power connectors and 80A Smart Power Stages.
CPU core (Vcore) power stages
144Reviewkitguru.net/components/motherboard/leo-waldock/msi-mag-x870-tomahawk-reviewRead 14 October 2026VRMs: 14+2+1 x 80A Smart Power Stages.
VRM controller
Not available
CPU power connectors
8+8 pin1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 19: 2x 8-pin +12V power connectors.
Extra slot power connector
Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 19: 1x 8-pin PCIe power connector. The special features list also names the Supplemental PCIe Power Connector.

Memory

Max memory
256GB1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026
Max memory speed (overclocked)
8,400MT/s2Retailer pagecustompc.com.cy/components/motherboards/amd-motherboards/msi-mag-x870-tomahawk-wifi-motherboard-amd-x870-socket-am5-atxRead 14 October 2026Max. memory speed (OC) 8400 MT/s. KitGuru and PC Gamer give the same figure from MSI.4Reviewkitguru.net/components/motherboard/leo-waldock/msi-mag-x870-tomahawk-reviewRead 14 October 2026Max. overclocking frequency 1DPC 1R up to 8400+ MT/s, 1DPC 2R and 2DPC 1R 6400+, 2DPC 2R 4800+. The CPU family is not named in this text.5Reviewpcgamer.com/hardware/motherboards/msi-mag-x870-tomahawk-wifi-reviewRead 14 October 2026Memory support DDR5-4800 to DDR5-8400+ (OC), up to 256 GB.
ECC memory
No1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 17: supports non-ECC, unbuffered memory.
CUDIMM support
No1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 17: supports CUDIMM, clock driver bypass mode only. POR boot frequency and support vary by CPU series.

Expansion slots

Expansion slots
Physical slotElectrical lanesPCIe generationConnected toCount
PCIe x16165CPU1
PCIe x1613Chipset1
PCIe x1644Chipset1
Full-length PCIe slots
3
Fastest PCIe x16 slot generation
5

Storage

M.2 storage slots
SlotPCIe generationPCIe lanesConnected toLongest driveTakes SATA drivesHeatsinkShares lanes with
M2_154CPUM.2 22110NoYesNot available
M2_254CPUM.2 2280NoYesRear USB 40Gbps Type-C ports. Both run at PCIe 5.0 x2 when M2_2 is used. Setting M2_2 to x4 in the BIOS turns off the USB 40Gbps ports
M2_342ChipsetM.2 2280NoYesPCI_E3 slot runs at x2 when M2_3 is used. Setting PCI_E3 to x4 in the BIOS turns off M2_3
M2_444ChipsetM.2 2280NoYesNot available
M.2 slots
4
PCIe 5.0 M.2 slots
2
SATA ports
41Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 18: 4x SATA 6Gb/s ports from an ASM1064 controller.

Rear ports

Rear ports
TypeVersionCountMax link rate (Gbps)Thunderbolt or USB4DP Alt Mode
USB-CUSB4240USB4Yes
USB-CUSB 3.2 Gen 2110Not availableNot available
USB-AUSB 3.2 Gen 2210Not availableNot available
USB-AUSB 3.2 Gen 135Not availableNot available
USB-AUSB 2.040.48Not availableNot available
HDMIHDMI 2.11Not availableNot availableNot available
Ethernet (RJ45)Not available15Not availableNot available
3.5 mm audioNot available2Not availableNot availableNot available
Optical S/PDIFNot available1Not availableNot availableNot available
Rear USB ports
12
Rear USB-C ports
3
Fastest rear USB port
40Gbps
Thunderbolt
No

Internal connectors

Internal USB headers
HeaderMax data rate (Gbps)HeadersFront ports servedPower out (W)
USB-C header201127
USB 3 header (19-pin)524Not available
USB 2.0 header (9-pin)0.4824Not available
Front USB-C header speed
20Gbps
Fan headers
81Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 19: 1 CPU fan, 1 water-pump/system fan and 6 system fan connectors make 8 headers. The EZ Conn-Header V2 (JAF_2) is a combination connector and is not counted.
ARGB headers
31Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 20: 3x 3-pin A-RAINBOW V2 (ARGB Gen2) LED connectors.
RGB headers
11Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 20: 1x 4-pin RGB LED connector.

Networking

Ethernet controllers
Realtek RTL81268Reviewmezha.ua/en/reviews/msi-mag-x870-tomahawk-wifi-motherboard-review-keep-the-balance/ampRead 14 October 20265 Gb/s Ethernet controller Realtek 8126-CG, as in the MSI manual. Stored as the chip family RTL8126.
Ethernet ports
1
Ethernet speed
5Gbps
Wi-Fi included
Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026
Wi-Fi bands
2.4 GHz, 5 GHz, 6 GHz1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026
Max Wi-Fi channel width
320MHz1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 19: Supports 2.4GHz, 5GHz and 6GHz (320MHz) up to 5.8Gbps, 802.11 a/b/g/n/ac/ax/be.
Wi-Fi module
Qualcomm FastConnect 78008Reviewmezha.ua/en/reviews/msi-mag-x870-tomahawk-wifi-motherboard-review-keep-the-balance/ampRead 14 October 2026Wireless communication is handled by Qualcomm FastConnect 7800 (Wi-Fi 7, 2.4/5/6 GHz, 4K-QAM). Published 2024-11-15.

Audio

Audio codec
Realtek ALC40801Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 19: Realtek ALC4080 codec, 7.1-channel USB audio.
DAC chip
Not available

Features

BIOS flashback
Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 20 and page 24: Flash BIOS button on the rear panel.
Clear CMOS button (rear)
Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 20 and page 24: Clear CMOS button on the rear panel.
POST code display
Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 20 and page 22: 1x EZ Digi-Debug LED (MSI's two-digit POST display) next to 4 EZ Debug LEDs.
Power button on the board
No1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026The specifications and the special features list name no power or reset button on the board. KitGuru lists the missing power micro button as a con.4Reviewkitguru.net/components/motherboard/leo-waldock/msi-mag-x870-tomahawk-reviewRead 14 October 2026Cons: a power micro button would be nice.
Dual BIOS
No1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 21: BIOS is 1x 256 Mb flash. Dual BIOS is not stated.
Tool-free features
Tool-free M.2 latch, Tool-free M.2 heatsink, PCIe slot release1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 22 DIY friendly list: EZ M.2 Shield Frozr II (screwless on M2_1 and M2_4 per Tech4Gamers), EZ M.2 Clip II and EZ PCIe Release. The Wi-Fi antenna connector type is not stated, so the push-on antenna option is not set.

Measured

We could not find any of these 3 fields. Show them
VRM temperature under CPU load
Not available
Power draw idle
Not available
Power draw CPU stress
Not available

In the box

In the box
1 x Quick installation guide, 1 x European Union regulatory notices, 1 x USB Drive, 2 x SATA Cables, 1 x EZ Front Panel Cable, 1 x 1 to 3 EZ Conn-Cable (V2), 1 x EZ Wi-Fi Antenna, 1 x Cable sticker, 3 x EZ M.2 Clip II, 1 x EZ M.2 Clip II Remover1Owner's manualtrovaprezzi.it/manuali/msi_mag_x870_tomahawk_wifi.pdfRead 14 October 2026Page 23 package contents.

Warranty

We could not find any of these 1 fields. Show them
Manufacturer warranty (source market)
Not available

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  1. Read 14 October 2026Backs 37 fields
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