Nanoxia Deep Silence 4 @ techPowerUp
 

The Deep Silence 4 is Nanoxia's mATX offering for silent fans out there. Offering the ability to control up to six fans within the chassis while encapsulating the sound from within, this should be an interesting option for those wanting a compact system with as little noise as possible.
http://www.techpowerup.com/reviews/N...eep_Silence_4/