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Explore power supplies guides, comparisons and buying advice. Compare compatibility, features and practical trade-offs for your PC setup.
Modular power supplies allow builders to attach only required cables, while non-modular units permanently solder every cable to the internal board. Semi-modular supplies balance both approaches by keeping core power cables fixed and secondary cables detachable.
ATX 3.1 replaces problematic 12VHPWR connector with safer 12V-2x6 design and relaxes hold-up time specs from 17ms to 12ms. Existing ATX 3.0 units remain compatible, but ATX 3.1 improves safety margins for high-draw GPUs.
PCGearWiki / Editorial Picks
The most-read buying guides in this category, plus the top-ranked products from the lead guide.
CORSAIR RM1000x 1000W Fully Modular ATX 3.1 9.9/10 Editorial Score Check price on Amazon 
MSI MAG A850GL PCIE5 850W Fully Modular 9.9/10 Editorial Score Check price on Amazon 
MSI MPG Ai1600TS PCIE5 1600W Titanium Modular 9.5/10 Editorial Score Check price on Amazon 
ASUS ROG Strix 1000W Platinum ATX 3.1