This item is provided by Crutchfield.com and includes free phone technical support for the life of the product. Details on how to take advantage of this service will be included with your package. Should you have any issues locating information on how to contact Crutchfield Technical Support, please contact this website's Customer Service department. This fan panel is designed for use with the Sanus CAPT01 low-voltage power supply . Three side-by-side fans push a high volume of air through your component rack, keepling your components cool. The thermostat kit that comes with the CAPT01 controls the fans, activating them when the temperature reaches 85 degrees, and turning them off when it drops below 75 degrees. What's in the Box: 1. Rack-mount fan unit (rack height 3U) 2. 3' DC power wire with DC barrel plugs on each end 3. Instruction Manual