Proven reliability and good efficiency especially designed by be quiet with the price conscious pc builders in mind the new be quiet system power 8 600w featuring true be quiet reliability with two 12v rails and rock solid voltages the series is certified 80plusreg efficient and able to support multiple gpus with four pcie connectors system power 8lsquos combination of power quietness for its class and efficiency is far beyond ordinary letting you build cost effective and reliable syste