Excerpt: The EarthWatts product is Antec's attempt to address the specific needs of those looking for the most efficient power supply available. The EarthWatts is 80 Plus certified; meaning that it has 80% or better efficiency at 20%, 50% and 100% of the power supply's total capability.
Conclusion: Presently, the 500W Antec EarthWatts EA-500 is available for $94.99 at NewEgg.com . This price seems too high for this level of power supply, and is more expensive than competitor offerings which have the same 80 PLUS efficiency rating.
Pros: 80 PLUS Certified efficiency, Excellent performance, Active PFC, Fully sleeved main power connector, Very high efficiency rating: PFC = 0.99, Extremely quiet operation, Excellent power regulation, Industrial grade components
Cons: Plain design and dull finish detract from the allure of efficiency, Peripheral cables should also be sleeved to match, 120mm cooling fan should be standard equipment