MSI PRO B840M-B Motherboard, mATX - Supports AMD Ryzen 9000/8000 / 7000 Processors, AM5 - DDR5 Memory Boost (8000+ MT/s OC), PCIe 4.0 x16, M.2 Gen4, 2.5G LAN
MSI PRO B840M-B Motherboard is priced at £89.99 — stable over the last 30 days.
Price last checked:
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
- ULTRA POWER - SUPPORTS THE LATEST RYZEN 9000 PROCESSORS IN HIGH PERFORMANCE - The PRO B840M-B employs a Direct 7 Phase (P-PAK) VRM for the AMD B840 chipset (AM5, Ryzen 9000 / 8000 / 7000) with MSI Core Boost technology for improved stability & performance
- PASSIVE & AI COOLING - A chipset heatsinks provide passive cooling; Frozr AI cooling automatically adjusts system fan settings based on CPU & GPU temperatures
- DDR5 MEMORY, PCIe 4.0 x16 SLOT - 2 x DDR5 DIMM slots enable extreme memory overclocking speeds (1DPC 1R, 8000+ MT/s OC); 1 x PCIe 4.0 x16 slot (64GB/s) with Steel Armor supports cutting-edge graphics cards
- DOUBLE M.2 CONNECTORS - Storage options include 2 x M.2 Gen4 x4 64Gbps slots
- HIGH-SPEED CONNECTIVITY - Network hardware includes 2.5Gbps LAN; Rear ports include USB 5Gbps Type-A and 7.1 HD Audio with Audio Boost
About This Product
The MSI PRO B840M-B Motherboard is a micro-ATX form factor board designed to support AMD Ryzen 9000, 8000, and 7000 series processors with the AM5 socket. It features DDR5 memory with speeds of up to 8000+ MT/s when overclocked, as well as PCIe 4.0 x16 and M.2 Gen4 expansion options. This motherboard is suitable for users seeking a compact, high-performance foundation for their gaming or content creation systems, particularly those utilising AMD's latest processor offerings.
Typical price
MSI PRO B840M-B Motherboard is currently £89.99, close to its 30-day average of £88.87. The price has been stable recently — this is roughly what you should expect to pay for this product.
Price History
Historical Prices
| Date | Price | Change |
|---|---|---|
| 13 Oct 2026, 00:29 | £89.99 | No change |
| 12 Oct 2026, 00:38 | £89.99 | No change |
| 11 Oct 2026, 00:38 | £89.99 | No change |
| 10 Oct 2026, 00:38 | £89.99 | No change |
| 9 Oct 2026, 00:40 | £89.99 | No change |
| 8 Oct 2026, 00:36 | £89.99 | +£13.50 (+17.6%) |
| 7 Oct 2026, 00:38 | £76.49 | No change |
| 6 Oct 2026, 00:39 | £76.49 | -£13.50 (-15%) |
| 5 Oct 2026, 00:42 | £89.99 | No change |
| 4 Oct 2026, 00:41 | £89.99 | No change |
