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

Rosewill Fortress 550W
Wattage
550W
Efficiency
80+ Platinum
Modular
non-modular
Best price from Newegg
$45.99
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Overview
A 550W unit with 80+ Platinum efficiency certification and non-modular cabling. 550W 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 $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+ Platinum |
| Form Factor | ATX |





