Features:Your computer's fans are just like sports fans; they're loud， obnoxious， and never shut up.Take control of your fans with this 4 channel fan speed controller.Reduce noise and maintain proper heat levels to keep all the parts of your computer running long and running strong.With the ability to manage 4 fans at once， you’ll be able to silence all the rowdy fans you want， and walk away with a cool victory.Stylish housing with Ultra Bright LED lightSpecifications:Regulated max power output: <30WVoltage of Fan 1， Fan 2， Fan 3， Fan 4 is 6V to 12VSize: 10.60cm x 10.20cm x 2.50cm (L*W*H)Color of LED: BluePackage Includes:1 x Fan Speed Controller4 x Mini Screws