Arctic Cooling 550RF power supply specs include:

• Nominal labeled power: 500 W continuous, 550 W peak (for one second)
• Measured maximum power: 544.9 W at 48.4º C.
• Labeled efficiency: Between 82% and 86%.
• Measured efficiency: Between 83% and 89% at 115 V.
• Active PFC: Yes.
• Modular Cabling System: No.
• Motherboard Power Connectors: One 20/24-pin connector and one ATX12V connector.
• Video Card Power Connectors: Two 6-pin connectors and two 6/8-pin connectors.
• Peripheral Power Connectors: Three in one cable.
• Floppy Disk Drive Power Connectors: One.
• SATA Power Connectors: Six in one cable.
• Protections: over current (OCP, tested and not working), over voltage (OVP, not tested), over power (OPP, tested and working) and short-circuit (SCP, tested and working).
• Warranty: Three years.
• More Information: http://www.arctic-cooling.com
• Suggested retail price: USD 91.95 or € 63.95