Package contents   Vengeance Airflow  2 additional fan covers (1 silver, 1 blue)  Speed control cable  3 mounting brackets (2 long, 1 short)  Technical Specifications   Bearing Type: Ball bearing  Fan Diameter: 60mm  RPM: 3500/2500 (using included speed control cable)  Noise level: 21.0 dB(A) (25 dB(A) max)  Fan life: 80,000hrs / 25ºC  Warranty: 2 years  Voltage: 7-13.2V