Ultra X4 850 W power supply main specs include:

• Nominal labeled power: 850 W.
• Measured maximum power: 969.4 W at 49.2º C.
• Labeled efficiency: 85% typical (i.e. under 50% load)
• Measured efficiency: Between 80.8% and 84.7% at 115 V (nominal, see complete results for actual voltage).
• Active PFC: Yes.
• Modular Cabling System: Yes, full.
• Motherboard Power Connectors: One 24-pin connector, one ATX12V connector and one EPS12V connector (all using the modular cabling system).
• Video Card Power Connectors: Three six/eight-pin connectors and three six-pin connectors (all in individual cables).
• SATA Power Connectors: 11 in four cables.
• Peripheral Power Connectors: Nine in two cables.
• Floppy Disk Drive Power Connectors: Two in two cables. Two more if the included adaptor that converts a peripheral power plug into two floppy disk drive power connectors is used.
• Protections: Over voltage (OVP, not tested). Short-circuit protection (SCP) present and working.
• Warranty: Three years or lifetime, if you register the product.
• Real Manufacturer: Andyson
• More Information: http://www.ultraproducts.com
• Average price in the US*: USD 200.00

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