Glad be quiet! compared to the last model could easily reduce the size. So the fan fit just so in my noise Insulated midi tower case. The installation is pretty straightforward (had to the other reviews a lot more effort expected) and both fans can be controlled separately from my Asus MB. However, the noise is still larger than expected and the sound is not as "soft" as the previous fan. The Rock Pro sounds a bit rough. But all in all good for the fans what to ...