That was simple and quickly installed. With me I have 20% set because I wanted to have 2 front case fan quietly. Although one höhrt but the difference in wide but not as strong as erhoft. I guess that the fans from Sharkoon T28 () but a little louder than usual. On Sonten it's good that you can connect up to 4 and the cable for the current 5.25 joined sufficiently long to make it even bother going zuverbauen or to hide.