Antec Signature 650 W power supply specs include:

• Nominal labeled power: 650 W.
• Measured maximum power: 868 W at 47.5º C.
• Labeled efficiency: 80% minimum.
• Measured efficiency: Between 82.3% and 86.4% at 115 V.
• Active PFC: Yes.
• Modular Cabling System: Yes (partial).
• Motherboard Power Connectors: One 24-pin connector, one EPS12V connector and one ATX12V connector.
• Video Card Power Connectors: One 6/8-pin connector coming from inside the power supply and one 6-pin connector on the modular cabling system.
• Peripheral Power Connectors: three on one cable coming from inside the power supply and six on two cables on the modular cabling system. The modular cabling system only allows up to two peripheral or SATA cables to be used at the same time.
• Floppy Disk Drive Power Connectors: One.
• SATA Power Connectors: three on one cable coming from inside the power supply and six on two cables on the modular cabling system. The modular cabling system only allows up to two peripheral or SATA cables to be used at the same time.
• Protections: over voltage (OVP, not tested), over power (OPP, tested and working), over temperature (OTP, not tested) and over current (OCP, tested and working).
• Warranty: 5 years.
• Real manufacturer: Delta Electronics.
• More Information: http://www.antec.com
• Average price in the US: USD 179.00.

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