MSI
Motherboard
In Stock
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
4.2(22)
RRP £89.99
£69.99
-12.5%
MSI PRO B840M-B Motherboard has dropped 12.5% over the last 30 days, currently at £69.99.
Price last checked:
Socket: Socket AM5
Chipset: B840M
Form Factor: Micro-ATX
Memory Type: DDR5
- 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.
Near its lowest price
At £69.99, MSI PRO B840M-B Motherboard is at or near its lowest tracked price of £69.99. The 30-day average is £79.36, making this a good time to buy if you've been waiting for a deal.
Price History
Current Price£69.99
Average Price£79.36
Lowest Price£69.99
Highest Price£79.99
Price Trend (30d)
-12.5%
Historical Prices
| Date | Price | Change |
|---|---|---|
| 23 Jun 2026, 05:53 | £69.99 | -£9.96 (-12.5%) |
| 21 Jun 2026, 21:56 | £79.95 | -£0.04 (-0.1%) |
| 20 Jun 2026, 21:55 | £79.99 | +£0.04 (+0.1%) |
| 19 Jun 2026, 21:55 | £79.95 | No change |
| 18 Jun 2026, 21:55 | £79.95 | No change |
| 16 Jun 2026, 05:51 | £79.95 | -£0.04 (-0.1%) |
| 9 Jun 2026, 06:17 | £79.99 | No change |
| 4 Jun 2026, 21:56 | £79.99 | No change |
| 3 Jun 2026, 21:54 | £79.99 | No change |
| 2 Jun 2026, 21:55 | £79.99 | No change |
