Manufacturer Dynatron Part Number DF124028BU-PWMG Voltage 12V DC Connection 4 Pin Air Flow 30.6 CFM Speed 18000 RPM Static Pressure 53.5 mm/H2O Noise Level 60.00 dBA Included in package 40 x 40 x 28mm dual ball bearing fan 4 PCS self-tapping screws Warranty 5-Years Manufacturer's Limited Warranty