PC Perspective posted a review on the Seasonic S12 II 500W Power Supply
Not everyone wants (and very few need) an 800W to 1,200W power supply. Seasonic designed the S12 II series for mainstream users and 500W is plenty of power to run the majority of mid-level enthusiast PCs. The Seasonic S12 II 500W power supply delivers solid voltages with good regulation and excellent efficiency with minimal noise.Seasonic S12 II 500W Power Supply Review