Fan Support - Front : 3 x 120mm / 3 X 140mm - Top : 3 x 120mm / 3 x 140mm - Power Supply Shroud : 3 x 120mm - Rear : 1 x 120mm Included Fan(s) - 3 x 140 x 30mm PWM fans in front + 1 x 120 x 30mm PWM fan in rear - Pre-installed Storm T3 PWM fan specs vary from the retail version