A little while ago, ThinkComputers reviewed the Zalman ZM500-HP 500W power supply unit. This time around, Zalman, maker of fine cooling products and power supplies, submitted for review a more powerful, but louder version of its line of power supply units, the ZM850-HP 850W. This 80PLUS-certified unit has lots of connectivity with its modular design, and two heatpipes and an ultra-quiet fan keep the unit virtually silent. The review is here