ASUS Prime B450M-A/CSM AM4 Micro ATX
Best price now
$96.55at NeweggChecked Nov 10
Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The ASUS Prime B450M-A/CSM is a micro-ATX AM4 motherboard built for budget Ryzen builds. It covers the basics well: four DDR4 slots, an M.2 slot, four SATA ports, HDMI and DVI video outputs, and a gigabit LAN port. It has no Wi-Fi and only one PCIe x16 slot, so it suits a single-GPU desktop rather than a loaded expansion build. Reviewers treat it as a dependable, no-frills board for office PCs and first-time builds, though its VRM and feature set are modest next to B450 boards that add more headers and better cooling.
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Lowest price we've seen: $96.55 on Nov 10 at Newegg. Tracked across 1 store since Nov 10.
Owners describe it as a solid, affordable board that boots reliably and is easy to set up. Most complaints center on the limited expansion and the modest power delivery rather than failures.
