Antec EarthWatts 500 W power supply specs include:ATX12V 2.2

• Nominal labeled power: 500 W at 50º C.
• Measured maximum power: 577 W at 46º C.
• Labeled efficiency: 80%
• Measured efficiency: Between 79.8% and 84.8% at 115 V (nominal, see complete results for actual voltage).
• Active PFC: Yes.
• Motherboard Connectors: One 20/24-pin connector, one ATX12V connector and one EPS12V connector.
• Peripheral Connectors: two auxiliary power cables for video cards with 6-pin connectors, one cable containing three standard peripheral power connectors and one floppy disk drive power connector, one cable containing three standard peripheral connectors and two cables containing two SATA power connectors each.
• Protections: Information not available.
• Warranty: Lifetime 3 years.
• More Information: http://www.antec.com
• Real manufacturer: Seasonic
• Average price in the US*: USD 90.00

* Researched at Shopping.com on the day we published this review.