MSI MAG B850 Tomahawk Max WiFi II AM5 ATX Motherboard

The MSI MAG B850 Tomahawk Max WiFi II is a premium full-size ATX gaming motherboard designed for AMD Ryzen 7000, 8000, and 9000 Series processors on the AM5 platform. Built on the AMD B850 chipset with DDR5 memory up to DDR5-8400, Wi-Fi 7 (up to 5.8Gbps), 5GbE LAN, four M.2 slots (including two PCIe 5.0), and a 14+2+1 phase VRM on an 8-layer PCB, it delivers flagship-level performance and connectivity.

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Tracked delivery across the UK
Genuine product from trusted distributors

Key Features

• AMD B850 chipset, AM5 socket — supports Ryzen 7000, 8000 and 9000 Series processors
• ATX form factor (304.8 x 243.84mm)
• DDR5 memory — 4 slots, up to 256GB, up to DDR5-8400 (OC), AMD EXPO support
• 1x PCIe 5.0 x16 slot for GPU
• 1x PCIe 4.0 x4 + 1x PCIe 3.0 x1 expansion slots
• 2x PCIe 5.0 x4 M.2 + 1x PCIe 4.0 x4 M.2 + 1x PCIe 4.0 x2 M.2 (4 M.2 slots total)
• 4x SATA 6Gb/s ports
• Wi-Fi 7 (2.4/5/6GHz, 320MHz, up to 5.8Gbps) + Bluetooth 5.4
• Realtek 8126VB 5GbE LAN
• Realtek ALC4080 7.1-Channel HD Audio
• 14+2+1 phase VRM, dual 8-pin CPU power, 8-layer PCB (2oz copper)
• 3x Addressable RGB V2 headers + 1x RGB header
• EZ Debug LED, EZ Memory Detection LED
• Flash BIOS button + Clear CMOS button on rear panel

Product Overview

The MSI MAG B850 Tomahawk Max WiFi II is a top-tier B850 ATX board for demanding AMD Ryzen builds. Its 14+2+1 phase VRM with dual 8-pin CPU power and 8-layer PCB ensures exceptional power delivery stability. Four M.2 slots — two running at PCIe 5.0 speeds — provide maximum storage bandwidth. Wi-Fi 7 with 320MHz channel support delivers up to 5.8Gbps wireless throughput, while 5GbE LAN covers wired connectivity. Three rear USB-C 10Gbps ports and the EZ M.2 Shield Frozr II heatsink system round out a feature set that punches well above the B850 price point.

Delivery & Fulfilment

This product is sold by TechFinder UK, a UK-based sole trader business.
All hardware is sourced through established distribution partners.
Orders are dispatched within 1–2 business days with tracked delivery across the United Kingdom.

Why Buy from TechFinder UK?

• UK-based sole trader — genuine products, real accountability
• Sourced through established distribution partners
• Secure checkout with buyer protection
• Tracked UK delivery, dispatched within 1–2 business days
• Pre- and post-purchase support available

Technical Details

• Chipset: AMD B850
• Socket: AM5 (Ryzen 7000 / 8000 / 9000 Series)
• Form Factor: ATX (304.8 x 243.84mm)
• Memory: 4x DDR5 DIMM, up to 256GB, up to DDR5-8400 (OC), AMD EXPO
• PCIe Slots: 1x PCIe 5.0 x16 (GPU), 1x PCIe 4.0 x4, 1x PCIe 3.0 x1
• M.2 Slots: 2x PCIe 5.0 x4, 1x PCIe 4.0 x4, 1x PCIe 4.0 x2
• SATA Ports: 4x SATA 6Gb/s
• LAN: Realtek 8126VB 5GbE
• Wireless: Wi-Fi 7 (2.4/5/6GHz, 320MHz, up to 5.8Gbps), Bluetooth 5.4
• Audio: Realtek ALC4080 7.1-Channel HD Audio
• Rear I/O: 4x USB 2.0, 1x USB 5Gbps Type-A, 2x USB 10Gbps Type-A, 3x USB 10Gbps Type-C, 1x HDMI 2.1, 1x LAN, Wi-Fi antenna, 1x Clear CMOS, 1x Flash BIOS
• Internal Headers: 2x USB 2.0, 2x USB 5Gbps, 1x USB 20Gbps, 3x ARGB V2, 1x RGB, 1x TPM
• VRM: 14+2+1 phase, dual 8-pin CPU power, 8-layer PCB
• Weight: 1.78kg (net)

Box Contents

• Motherboard
• 1x SATA cable
• 1x EZ Wi-Fi antenna
• EZ M.2 Clips II + remover
• 1-to-3 EZ Conn-Cable
• Cable sticker
• Quick Installation Guide

Product Identification

Model: MAG B850 TOMAHAWK MAX WIFI II
EAN: 4711377424011