SeaSonic S12III 500W
Category: Power Supply
Manufacturer: Seasonic
Wattage: 500W
Efficiency: 80+ Bronze
Modular: non-modular
Price: $149.00 from Newegg

SeaSonic S12III 500W
Wattage
500W
Efficiency
80+ Bronze
Modular
non-modular
Best price from Newegg
$149.00
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Overview
This is a 500W unit with 80+ Bronze efficiency certification and non-modular cabling. 500W covers mainstream builds with a modest GPU. It uses the ATX form factor — confirm your case lists ATX support. A dependable power supply protects everything downstream, and efficiency tiers are a decent proxy for overall build quality.
At $149.00 it sits in the high-end power supply bracket. PlanMyPC's builder flags compatibility problems automatically and tracks the latest power supply deals from multiple stores. Warranty coverage follows Seasonic's standard policy — confirm regional terms on the listing. Every published spec is tabulated below, and compatibility against your current part list is checked automatically.
| Specification | Value |
|---|---|
| Modular | non-modular |
| Wattage | 500 W |
| Efficiency | 80+ Bronze |
| Form Factor | ATX |





