
ASUS PRIME B850M-A-CSM, AMD mATX Motherboard, DDR5 Slot, PCIe 5.0 Ready, 3 M.2 Slots, Ethernet Realtek 2.5 Gb, DisplayPort, HDMI, Front USB-C 5 Gbps, BIOS FlashBack, Aura Sync
ASUS PRIME B850M-A-CSM is priced at £144.98 — 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.
- Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications.
- Unmatched customisation: The three addressable second generation covers are all configurable with Aura Sync RGB lighting, to give your motherboard a personal touch.
- AMD AM5 socket: ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors.
- Full cooling: VRM and M.2 heat sink, PCH heat sink, fan covers and Xpert 2+ fan.
- High-performance network connection: Realtek 2.5 Gb Ethernet network.
About This Product
The ASUS PRIME B850M-A-CSM is an AMD mATX motherboard featuring a Socket AM5, compatible with AMD Ryzen 9000, 8000, and 7000 series desktop processors. It boasts high-performance capabilities, including PCIe 5.0 readiness, three M.2 slots, and a Realtek 2.5 Gb Ethernet connection, making it suitable for demanding applications such as AI computing. This motherboard is ideal for users seeking a powerful and customisable platform, with features like Aura Sync RGB lighting and comprehensive cooli...
Typical price
ASUS PRIME B850M-A-CSM is currently £144.98, close to its 30-day average of £142.48. 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, 00:27 | £144.98 | No change |
| 12 Oct 2026, 00:35 | £144.98 | No change |
| 11 Oct 2026, 00:35 | £144.98 | No change |
| 10 Oct 2026, 00:35 | £144.98 | No change |
| 9 Oct 2026, 00:37 | £144.98 | No change |
| 8 Oct 2026, 00:34 | £144.98 | +£29.99 (+26.1%) |
| 7 Oct 2026, 00:35 | £114.99 | No change |
| 6 Oct 2026, 16:34 | £114.99 | -£29.99 (-20.7%) |
| 5 Oct 2026, 00:39 | £144.98 | No change |
| 4 Oct 2026, 00:38 | £144.98 | No change |











