This is RotoSub´s first public technology demonstration. The video was shot at RotoSub labs early 2011 showcasing the first self silencing fan using the RotoSub technology. The system is integrated into a high performance 80 mm CPU cooling fan and demonstrates dual sided noise reduction without additional components. This is great news for people building quiet pc's. Hopefully this technology comes to the market in the near future. For more information go to www.rotosub.com Click to Watch