Today I will be looking at the highest efficiency rated power supply that I have received yet, the OCZ Z Series 650 watt power supply. With efficiency rated at over 88%, this power supply is 80Plus Silver rated. It sells for a price that won’t break the bank and is SLI certified. Read on to check out the OCZ Z Series 650!

http://www.ocia.net/reviews/zxseries650/page1.shtml