MSI MAG X870 Tomahawk WiFi
- Chipset:
- X870
- Socket:
- AM5
- Form Factor:
- ATX
- M.2 Slots:
- 4x M.2
- Network:
- WiFi 7 + 5G LAN
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Manufacturer: MSI Last updated: September 11, 2026
MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7) Review
The MAG X870 Tomahawk WiFi extends MSI's popular Tomahawk line to the X870 chipset, giving mid-range builders dual PCIe 5.0 M.2 slots and 5G LAN at a lower price than the MPG Carbon or MEG boards.
MSI does not publish an exact VRM phase count for this board, but it is rated for sustained Ryzen 9000 non-X3D operation and overclocking on the mid-range end of the X870 lineup. Four DDR5 UDIMM slots support up to 256GB total capacity, with overclocking rated up to 8400+ MT/s on Ryzen 9000 series processors. Expansion covers three slots: a PCIe 5.0 x16 primary from the CPU, a PCIe 3.0 x1, and a PCIe 4.0 x4. Storage is handled by four M.2 sockets, two running PCIe 5.0 x4 from the CPU and two at PCIe 4.0 from the chipset. A Realtek 8126-CG 5G LAN controller provides fast wired networking, paired with Wi-Fi 7 rated up to 5.8Gbps. Audio uses a Realtek ALC4080 codec with 7.1-channel support. Against the MSI MAG B850 Tomahawk Max WiFi in this catalog, the X870 Tomahawk WiFi adds a second PCIe 5.0 M.2 slot and the newer X870 chipset, making it the pick for builders who want dual Gen5 storage without moving to X870E.
Power Delivery and VRM Design
MSI does not publish an exact VRM phase count for this board, but it is rated for sustained Ryzen 9000 non-X3D operation and overclocking on the mid-range end of the X870 lineup.
Memory Support
Four DDR5 UDIMM slots support up to 256GB total capacity, with overclocking rated up to 8400+ MT/s on Ryzen 9000 series processors.
Expansion and Storage
Expansion covers three slots: a PCIe 5.0 x16 primary from the CPU, a PCIe 3.0 x1, and a PCIe 4.0 x4. Storage is handled by four M.2 sockets, two running PCIe 5.0 x4 from the CPU and two at PCIe 4.0 from the chipset.
Connectivity
A Realtek 8126-CG 5G LAN controller provides fast wired networking, paired with Wi-Fi 7 rated up to 5.8Gbps. Audio uses a Realtek ALC4080 codec with 7.1-channel support.
Comparison to Sibling Products
Against the MSI MAG B850 Tomahawk Max WiFi in this catalog, the X870 Tomahawk WiFi adds a second PCIe 5.0 M.2 slot and the newer X870 chipset, making it the pick for builders who want dual Gen5 storage without moving to X870E.
Specifications
Platform and CPU compatibility
| Platform | AMD |
|---|---|
| Socket | AM5 |
| Socket | AMD Ryzen 9000 / 8000 / 7000 series |
| Chipset | X870 |
Platform
| Socket Type | AM5 |
|---|---|
| Form Factor | ATX |
Memory
| Memory Type | DDR5 |
|---|---|
| Memory Slots | 4 |
| Max Memory | 256 GB |
| Memory Type | 4x DDR5 UDIMM, up to 256GB, up to 8400+ MT/s (OC) |
Expansion & Connectivity
| M.2 Slots | 4 |
|---|---|
| PCIe 5.0 Support | Yes |
| Wi-Fi Onboard | Yes |
Network and audio
| Audio Codec | Realtek ALC4080, 7.1-channel |
|---|
| Model | MAG X870 Tomahawk WiFi |
|---|---|
| VRM | Digital VRM (phase count not officially disclosed by MSI) |
| Expansion | PCIe 5.0 x16 + PCIe 4.0 x4 + PCIe 3.0 x1 |
| Connectivity | USB-C, Frozr thermal design |
| Networking | Realtek 8126-CG 5G LAN, Wi-Fi 7 |
| Special Features | 4x M.2 (2x Gen5, 2x Gen4) |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Builders who want dual Gen5 M.2 slots without X870E pricing
- Mid-range AM5 builds that want fast 5G LAN
Not for
- Buyers who don't need dual Gen5 storage
- Budget-first AM5 builds
FAQs
What are the key specifications of the MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7)?
The MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7) is a motherboard from MSI. Key specs: Socket AM5, Chipset X870, VRM Digital VRM (phase count not officially disclosed by MSI), Memory 4x DDR5 UDIMM, up to 256GB, up to 8400+ MT/s (OC), Expansion PCIe 5.0 x16 + PCIe 4.0 x4 + PCIe 3.0 x1.
Will the MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7) work with my current setup?
The MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7) lists Socket is AM5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7) best suited to?
It suits builders who want dual gen5 m.2 slots without x870e pricing, mid-range am5 builds that want fast 5g lan.
What are the drawbacks of the MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7)?
It is a poor fit for buyers who don't need dual gen5 storage, budget-first am5 builds.
Compare and read more
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- ASRock B650E Steel Legend WiFi (AM5/AMD B650/ATX/16+2+1 Phase 60A SPS VRM/Three M.2 Slots/Wi-Fi 6E) vs MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7)
- ASRock B850 Steel Legend WiFi (AM5/AMD B850/ATX/14+2+1 Phase 80A Dr.MOS VRM/Four M.2 Slots/Wi-Fi 7) vs MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7)
- ASRock B860 Steel Legend WiFi (LGA1851/Intel B860/ATX/14+1+1+1+1 Phase 80A Dr.MOS VRM/Wi-Fi 6E) vs MSI MAG X870 Tomahawk WiFi (AM5/AMD X870/ATX/Four M.2 Slots/5G LAN/Wi-Fi 7)