The list of features and specifications is quite impressive on the In WIn Commander II 850 watt power supply.  Immediately grabbing our attention was the four +12v rails at 34A each. This should be an adequate amount of +12v Amps to satisfy a SLI/Crossfire-X setup using two, three, or even four video cards depending on the video cards power requirements.  The use of Japanese Electrolytic capacitors is another plus.  Keep in mind only the primary capacitors are of Japanese origin, the rest appear to be of Taiwan origin. Another nice feature is the “Intelligent Fan Speed Control” that In Win has implemented on the Commander II series PSU’s.  As the PSU’s temperatures rise the fan speed automatically increases to aid in keeping the unit cool and thus increasing efficiency.

Here is a list of the features for the In WIn Commander II Bronze 850 Watt Power Supply:

• Supports NVIDIA SLI & Quad SLI and all Multi-Core GPU Technologies
• High Efficiency up to 85%
• Active Power Factor Corrections (PF>0.99)
• Supports ATX 12V V2.3 / EPS 12V V2.91
• Modularized Cable Management System
• 8(6+2) Pin PCI-E Connectors for Multi-GPU Graphics Cards
• Four Independent +12v Outputs
• 13.5cn Double Ball-Bearing Fan
• Patented 4-Pin Molex Easy-Swap Connectors
• Intelligent Fan Speed Control for Optimal Acoustics
• High Efficiency Voltage Transfer Technology of Double Forward Circuit Design
• Japanese Industrial Grade Electrolytic and Solid State Capacitors to Ensure Reliability and Superior Performance
• Steady 12V DC to DC VRM Output Design
• Quality Gold Plated High Current Terminals
• Hexagon Shaped Ventilation for Excellent Heat Dissipation
• Provides Multiple Industrial Grade Protectors – Over Current, Over Voltage, Over Power, Under Voltage, and Short Circuit Protections
• ErP Lot 6 Compliant
• 80 Plus Bronze Certification

And finally the specifications: