MSI PRO B850-S EVO WIFI B850 AM5 ATX DDR5 Motherboard

The MSI PRO B850-S EVO WIFI is a full-size ATX 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 a robust 12+2+1 phase VRM, it delivers premium connectivity and performance for demanding builds.

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)
• 1x PCIe 5.0 x16 slot for GPU
• 1x PCIe 4.0 x16 slot
• 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 0/1/5/10
• Wi-Fi 7 (2.4/5/6GHz, up to 2.9Gbps) + Bluetooth 5.4
• Realtek 8126VB 5GbE LAN
• Realtek ALC897 HD Audio
• 12+2+1 phase VRM (8+4 pin CPU power, 6-layer PCB)
• 3x Addressable RGB V2 headers + 1x RGB header
• Flash BIOS button + Clear CMOS button on rear panel

Product Overview

The MSI PRO B850-S EVO WIFI is a feature-rich ATX board suited for high-performance AMD Ryzen builds. Its 12+2+1 phase VRM with 8+4 pin CPU power connectors and 6-layer PCB ensures stable power delivery for demanding processors. The PCIe 5.0 x16 GPU slot and PCIe 5.0 M.2 slot provide top-tier bandwidth for current and future components. Wi-Fi 7 and 5GbE LAN deliver exceptional wired and wireless connectivity, while 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)
• PCIe Slots: 1x PCIe 5.0 x16, 1x PCIe 4.0 x16
• 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 0/1/5/10)
• LAN: Realtek 8126VB 5GbE
• Wireless: Wi-Fi 7 (2.4/5/6GHz, up to 2.9Gbps), Bluetooth 5.4
• Audio: Realtek ALC897 HD Audio
• Rear I/O: 4x USB 2.0, 2x USB 5Gbps Type-A, 2x USB 10Gbps Type-A, 1x USB 10Gbps Type-C, 1x HDMI, 1x DisplayPort, 1x LAN, 3x Audio jacks, Wi-Fi antenna, 1x Clear CMOS, 1x Flash BIOS
• Internal Headers: 2x USB 2.0, 2x USB 5Gbps, 1x USB 10Gbps, 3x ARGB V2, 1x RGB, 1x TPM, 1x COM
• VRM: 12+2+1 phase, 8+4 pin CPU power
• Weight: 1.21kg (net)

Box Contents

• Motherboard
• 1x SATA cable
• 1x EZ Wi-Fi antenna
• M.2 screw / standoff sets
• I/O Shield
• Quick Installation Guide

Product Identification

Model: PRO B850-S EVO WIFI
EAN: 4711377422765