I am using the Zalman ZM-MFC1 fan controller in my Chieftec Matrix case. I am sure you can find it at just about any modding supply site on the web like So-Trick or Directron, or Cooler Guys just to name a few. It has four rheos that are adjustable, and two switches that are for 12V/OFF/5V. All six positions have a blue LED, the 2 switches each have an LED that is blue for 5V and red for 12V. It even has a blue plexi face plate that will blend in perfectly with your blue Chieftec. Hope that helps.