
ASUS PRIME B840M-A CSM AMD B840 mATX motherboard, DDR5, PCIe 4.0 Ready, 3xM.2 slots, 2.5Gb Ethernet, DisplayPort, HDMI, rear and front USB 5Gbps Type-C support, BIOS FlashBack, Corporate Stable Model
RRP £146.86
ASUS PRIME B840M-A CSM AMD B840 mATX motherboard has dropped 1.1% over the last 30 days, currently at £133.49.
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.
- Corperate Stable Model: offers up to 36-month product lifecycle support and 6-month end-of-life notice, each purchase comes with ASUS Control Center Express server-grade IT management software
- Ready for Advanced AI PC: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
- AMD AM5 Socket: Ready for AMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors
- Enhanced Power Solution: 6-layer PCB, alloy chokes and durable capacitors for stable power delivery
- Ultrafast Connectivity: PCIe 4.0 x16 slot, PCIe 4.0 M.2 slots, Realtek 2.5Gb Ethernet, rear USB 10Gbps Type-A ports, rear and front USB 5Gbps Type-C support
- Comprehensive Cooling: VRM and M.2 heatsinks, PCH heatsink, hybrid fan headers and Fan Xpert 2+
- DIY-Friendly Design: Pre-mounted I/O shield, BIOS FlashBack, M.2 heatsink, Q-Dashboard, Q-LED Core
- Unmatched Personalization: Three Addressable Gen 2 headers, all configurable with ASUS-exclusive Aura Sync RGB lighting
- Renowned Software: Armoury Crate, ASUS DriverHub, ASUS MyHotkey
About This Product
The ASUS PRIME B840M-A CSM is a micro-ATX motherboard featuring DDR5 memory and the AMD B840M chipset. It offers a range of connectivity options, including 3x M.2 slots, 2.5Gb Ethernet, DisplayPort, and HDMI, as well as rear and front USB 5Gbps Type-C support. This motherboard is suitable for corporate and business users who require a stable and reliable platform for their systems, with features like BIOS FlashBack adding to its appeal.
Near its lowest price
At £133.49, ASUS PRIME B840M-A CSM AMD B840 mATX motherboard is at or near its lowest tracked price of £133.49. The 30-day average is £134.55, making this a good time to buy if you've been waiting for a deal.
Price History
Historical Prices
| Date | Price | Change |
|---|---|---|
| 13 Oct 2026, 00:25 | £133.49 | No change |
| 12 Oct 2026, 00:34 | £133.49 | No change |
| 11 Oct 2026, 00:34 | £133.49 | No change |
| 10 Oct 2026, 00:34 | £133.49 | No change |
| 9 Oct 2026, 00:36 | £133.49 | No change |
| 8 Oct 2026, 00:32 | £133.49 | No change |
| 7 Oct 2026, 00:34 | £133.49 | No change |
| 6 Oct 2026, 00:35 | £133.49 | No change |
| 5 Oct 2026, 00:38 | £133.49 | No change |
| 4 Oct 2026, 00:37 | £133.49 | No change |











