be quiet! System Power 9 400W
Category: Power Supply
Manufacturer: be quiet!
Wattage: 400W
Efficiency: 80+ Bronze
Modular: non-modular
Price: $273.99 from Newegg
be quiet! System Power 9 400W
Wattage
400W
Efficiency
80+ Bronze
Modular
non-modular
Best price from Newegg
$273.99
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Overview
A 400W unit with 80+ Bronze efficiency certification and non-modular cabling. It uses the ATX form factor — confirm your case lists ATX support. 400W covers mainstream builds with a modest GPU. A dependable power supply protects everything downstream, and efficiency tiers are a decent proxy for overall build quality.
Its $273.99 price tag places it squarely in premium territory. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Warranty coverage follows be quiet!'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 | 400 W |
| Efficiency | 80+ Bronze |
| Form Factor | ATX |
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