MSI MAG B850 Gaming Plus Max WiFi AM5 ATX Motherboard

The MSI MAG B850 Gaming Plus Max WiFi is a 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, Wi-Fi 7, 5GbE LAN, PCIe 5.0 GPU and M.2 slots, and dual USB-C 10Gbps rear ports, it delivers premium gaming connectivity and performance.

UK-based seller
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 DDR5-8200 (OC), AMD EXPO support
• 1x PCIe 5.0 x16 slot for GPU
• 1x PCIe 4.0 x4 + 2x PCIe 3.0 x1 expansion slots
• 1x PCIe 5.0 x4 M.2 + 1x PCIe 4.0 x4 M.2 + 1x PCIe 4.0 x2 M.2 (3 M.2 slots total)
• 4x SATA 6Gb/s ports, RAID 0/1
• Wi-Fi 7 (2.4/5/6GHz, up to 2.9Gbps) + Bluetooth 5.4
• Realtek 8126 5GbE LAN
• Realtek ALC897 7.1-Channel HD Audio
• Dual 8-pin CPU power connectors
• 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 Gaming Plus Max WiFi is a well-equipped gaming ATX board for AMD Ryzen builds. It features a PCIe 5.0 x16 GPU slot and PCIe 5.0 M.2 slot for maximum bandwidth, alongside Wi-Fi 7 and 5GbE LAN for top-tier connectivity. The dual USB-C 10Gbps rear ports and EZ Debug LEDs make it practical for both builders and enthusiasts. The rear Flash BIOS button enables BIOS updates without a CPU installed.

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 DDR5-8200 (OC), AMD EXPO
• PCIe Slots: 1x PCIe 5.0 x16 (GPU), 1x PCIe 4.0 x4, 2x PCIe 3.0 x1
• M.2 Slots: 1x PCIe 5.0 x4, 1x PCIe 4.0 x4, 1x PCIe 4.0 x2
• SATA Ports: 4x SATA 6Gb/s (RAID 0/1)
• LAN: Realtek 8126 5GbE
• Wireless: Wi-Fi 7 (2.4/5/6GHz, up to 2.9Gbps), Bluetooth 5.4
• Audio: Realtek ALC897 7.1-Channel HD Audio
• Rear I/O: 4x USB 2.0, 1x USB 5Gbps Type-A, 1x USB 10Gbps Type-A, 2x USB 10Gbps Type-C, 1x DisplayPort, 1x LAN, 1x S/PDIF, Wi-Fi antenna, 1x Clear CMOS, 1x Flash BIOS
• Internal Headers: 2x USB 2.0, 3x USB 5Gbps, 3x ARGB V2, 1x RGB, 1x TPM, 1x COM
• CPU Power: 2x 8-pin ATX
• Weight: 1.26kg (net)

Box Contents

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

Product Identification

Model: MAG B850 GAMING PLUS MAX WIFI
EAN: 4711377410465