I read somewhere that they are sufficient for people who don t overclock.
Fractal design r5 fan configuration.
Packed with intelligently designed enthusiast oriented features delivering a silent case with powerful and expansive air and liquid cooling support.
For pc on the pc a gamefaqs message board topic titled best fan setup for fractal design define r5.
The interior of the define r5 blackout is roomy and supports a variety of large radiators.
The define r5 case reaches the highest level of silent computing through strategically placed dense sound dampening material moduvent fan vent covers and finely tuned dynamic series fans.
The included 140mm fans spin at a maximum of 1000rpm and they are so quiet that even at maximum speed they are still silent.
If there were three 5 25 slots this design would allow you to put a 120 mm or 140 mm intake fan there.
As you may have guessed from the title the case i got is the fractal design define r5.
The door can be easily swapped to open from either side of the case.
Fractal design has included a built in three speed fan controller in the front panel which supports 5v 7v and 12v.
Interior inspection of the define r5.
The case sports two high quality and low noise fans 140mm already mounted one in the front and one in the back.