The next thing you notice are the dual 120mm rear case fans - a first as far as I know. A front 120mm fan has also been fitted to cool the hard drive bays. All the fans have built in blue LEDs that match the blue lit front of the case, but more on that later. If you worry about sonics you’ll be happy to know that all of the fans are very low speed - a mere 1,000rpm - and produce a minimal amount of noise.