Use this Y cable to two 120mm be quiet! To operate Silent Wings 2 PWM fans to one PWM connector on the mainboard. This has only 3 4-pin fan connectors but I wanted to use a 4 case fans. Length sufficient to move invisible to the cable on the side panel. Super processed nicely sleeved and no problems. Are certainly more favorable variants, these make but visually "approve" an impression. Since I like to give out the few euros more, if you then it gets this outstanding quality.