SilverStone Nightjar 400 W power supply specs include:

• Nominal labeled power: 400 W.
• Measured maximum power: 617 W at 47.1º C.
• Labeled efficiency: Between 82% and 86%, 80 Plus Bronze certified
• Measured efficiency: Between 84.8% and 87.2% at 115 V (nominal, see complete results for actual voltage).
• Active PFC: Yes.
• Modular Cabling System: No.
• Motherboard Power Connectors: One 20/24-pin connector and two ATX12V connectors that together form an EPS12V connector.
• Video Card Power Connectors: Two six/eight-pin connectors on one cable.
• SATA Power Connectors: Six in two cables.
• Peripheral Power Connectors: Six in two cables.
• Floppy Disk Drive Power Connectors: Two in two cables.
• Protections: Over voltage (OVP, not tested), over current (OCP, tested and working), over power (OPP, tested and working) and short-circuit (SCP, tested and working).
• Warranty: Three years.
• Real Manufacturer: FSP
• http://www.fsp-group.com.tw
• More Information: http://www.silverstonetek.com
• Average price in the US*: 170.00.

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