SeaSonic ECO 430W
Category: Power Supply
Manufacturer: Seasonic
Wattage: 430W
Efficiency: 80+ Bronze
Modular: non-modular
Price: $350.82 from Newegg

SeaSonic ECO 430W
Wattage
430W
Efficiency
80+ Bronze
Modular
non-modular
Best price from Newegg
$350.82
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Overview
A 430W unit with 80+ Bronze efficiency certification and non-modular cabling. 430W covers mainstream builds with a modest GPU. It uses the ATX form factor — confirm your case lists ATX support. Power supplies are the wrong place to cut corners — efficiency certification correlates with build quality and warranty length.
At $350.82 it sits in the premium power supply bracket. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current power supply prices across retailers. Warranty coverage follows Seasonic's standard policy — confirm regional terms on the listing. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.
| Specification | Value |
|---|---|
| Modular | non-modular |
| Wattage | 430 W |
| Efficiency | 80+ Bronze |
| Form Factor | ATX |





