PRIME B650M-A II-CSM Spec and Price in the United Kingdom
A Micro-ATX AM5 board on the AMD B650 chipset with a single PCIe 4.0 x16 slot and two M.2 slots. Four DDR5 DIMM slots take up to 192GB, and the board carries four SATA ports. Networking is 2.5 Gigabit Ethernet, with no onboard Wi-Fi.
Tied 34th of 1869 models in the Motherboards catalog on RAM slots — 1241 models share this figure. Tied 721st of 1869 models in the Motherboards catalog on Max memory — 71 models share this figure.
Prices include VAT.
The last tracked price for PRIME B650M-A II-CSM in the United Kingdom was £122.38 at Amazon.co.uk, captured 2026-10-12. Across one tracked merchant and 166 days of recorded prices, the 90-day median for PRIME B650M-A II-CSM is £165.00 and the lowest recorded price is £108.96. This site began capturing prices on July 30, 2026; for Amazon listings, prices dated earlier come from Keepa's price history.
Captured periodically and may have changed.
- PRIME B650M-A II-CSM
Each point is one day's recorded price, not a list price. Points dated before July 30, 2026, when this site began capturing prices, come from Keepa's Amazon price history. How we track prices
Specifications
- Socket
- AM5
- Chipset
- B650
- Form factor
- Micro-ATX
- Memory type
- DDR5
- RAM slots
- 4
- Max memory
- 192 GB
- M.2 slots
- 2
- PCIe x16 slots
- 1
- PCIe version
- 4.0
- SATA ports
- 4
- LAN speed
- 2.5 GbE
- Wi-Fi
- No
Guides for this category
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.