This article covers MSI MAG B850 TOMAHAWK MAX WIFI AMD Ryzen 9000.

Overview

MSI's MAG series has long been a favorite among mid-to-high-end gamers, and the MAG B850 TOMAHAWK MAX WIFI continues that tradition. Built around the AMD B850 chipset and the Socket AM5 platform, this ATX motherboard supports Ryzen 9000, 8000, and 7000 series processors and APUs. The standout feature here is the 14+2+1 phase power delivery with 80A smart power stages (SPS). This robust VRM design can easily handle high-end Ryzen 9 CPUs, ensuring stable power delivery even under sustained heavy loads. MSI also pairs it with an extended heatsink design and 7W/mK MOSFET thermal pads for efficient heat dissipation. On the connectivity front, the board comes with Wi-Fi 7 (up to 5.8Gbps) and a 5Gbps wired LAN port, making it an excellent choice for gamers and creators who demand low latency and high throughput.

Compatibility Guide

This motherboard supports Socket AM5 CPUs, including AMD Ryzen 9000, 8000, and 7000 series. It features four DDR5 DIMM slots supporting up to 256GB of memory, with overclocking support up to DDR5-8400 and AMD EXPO profiles. The form factor is standard ATX (304.8 x 243.84mm), fitting most mid-tower and full-tower cases. Expansion includes one PCIe 5.0 x16 slot, one PCIe 4.0 x4 slot, and one PCIe 3.0 x1 slot, giving you plenty of room for modern graphics cards and add-in cards. Storage options are generous: four M.2 slots (two PCIe 5.0 x4, one PCIe 4.0 x4, one PCIe 4.0 x2) plus four SATA3 ports. This allows for a mix of ultra-fast NVMe drives and large-capacity SATA SSDs or HDDs.

Product Info

The MSI MAG B850 TOMAHAWK MAX WIFI launched in late 2024, positioning itself as a mid-to-high-end option within the B850 lineup. It offers VRM and feature set that rival some X870 boards, but at a more accessible price point. Key specifications include: Chipset: AMD B850 CPU Socket: Socket AM5 Memory: 4x DDR5 DIMM (max 256GB, DDR5-8400 OC) Expansion: 1x PCIe 5.0 x16, 1x PCIe 4.0 x4, 1x PCIe 3.0 x1 Storage: 4x M.2 (2x PCIe 5.0 x4, 1x PCIe 4.0 x4, 1x PCIe 4.0 x2), 4x SATA3 Networking: Wi-Fi 7, Bluetooth 5.4, 5Gbps LAN Audio: Realtek ALC4080 (7.1ch) Rear USB: 3x USB 10Gbps Type-C, 2x USB 10Gbps Type-A, 1x USB 5Gbps Type-A, 4x USB 2.0 Front USB: 1x USB 20Gbps Type-C, 4x USB 5Gbps Type-A, 4x USB 2.0 Warranty: 3 years

Best Use Cases

High-end gaming PC builders: With its strong VRM and PCIe 5.0 support, this board pairs perfectly with a Ryzen 9 7950X or Ryzen 7 9800X3D and the latest graphics cards for uncompromising gaming performance. Content creators: Video editors, 3D artists, and streamers will appreciate the stable power delivery for long rendering sessions and the ability to run multiple fast NVMe drives for quick file access. Future-proof upgraders: The AM5 platform promises CPU support for years to come, and with Wi-Fi 7 and PCIe 5.0, this board is ready for next-gen components. Value-conscious enthusiasts: If you want most of the features of an X870 board but don't need USB4 or extra PCIe lanes, this B850 board offers excellent bang for the buck.

Things to Consider

This board supports DDR5 memory only — if you have DDR4 RAM, you'll need to buy new sticks. Also, there is only one PCIe 5.0 x16 slot, so multi-GPU setups (SLI/CrossFire) are not supported. While the VRM is powerful, pairing it with a Ryzen 9 CPU requires a capable cooler — a large air cooler or a 360mm AIO is recommended for sustained workloads. Compared to X870 boards, the B850 lacks native USB4/Thunderbolt support and has fewer total PCIe lanes. However, for most gaming and general productivity tasks, these differences are negligible. ## FAQ
Q: Can I use this motherboard with a Ryzen 5 7600? A: Absolutely. The Ryzen 5 7600 has a 65W TDP, which is well within the board's capabilities. In fact, this gives you plenty of headroom for a future CPU upgrade to a Ryzen 9. Q: How many PCIe 5.0 SSDs can I install? A: Two M.2 slots support PCIe 5.0 x4. The other two are PCIe 4.0 x4 and PCIe 4.0 x2. If you use two PCIe 5.0 SSDs simultaneously, be mindful of the CPU's PCIe lane allocation. Q: Does this motherboard support Windows 10? A: Officially, only Windows 11 64-bit is supported. While Windows 10 may technically install, driver support is limited, so we recommend sticking with Windows 11.

Product Disclosure (Amazon)

  • Manufacturer: MSI
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B0DPKVF29H
  • Note: This article covers a manufacturer-made product based on Amazon listing details.