Rosewill Capstone 550W
Category: Power Supply
Manufacturer: Rosewill
Wattage: 550W
Efficiency: 80+ Gold
Modular: non-modular
Price: $45.99 from Newegg

Rosewill Capstone 550W
Wattage
550W
Efficiency
80+ Gold
Modular
non-modular
Best price from Newegg
$45.99
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Overview
This is a 550W unit with 80+ Gold efficiency certification and non-modular cabling. It uses the ATX form factor — confirm your case lists ATX support. 550W 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.
At $45.99 it sits in the budget power supply bracket. PlanMyPC's builder flags compatibility problems automatically and tracks the latest power supply deals from multiple stores. Support and warranty service run through Rosewill, with terms that vary by region. 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 | 550 W |
| Efficiency | 80+ Gold |
| Form Factor | ATX |





