Product Detail 6 Channel Fan controller 5.25" Bay Mountable Wide Range Voltage Adjustment VFD Panel Error Detecting Alarm Feature 5.85 x 1.65 x 3.26 (in) 148 x 42 x 83 (mm) Display dimension: 3.93 x 0.74in / 100 x 19mm . The "Scythe Kaze Master Pro KM03-BK - Fan speed controller with alarm - black" is best product for you. We recommended Scythe Kaze Master Pro KM03-BK - Fan speed controller with alarm - black