NZXT Aer RGB 2 140mm PWM Fan – 140 x 140 x 26mm – 222G – Plastic, Rubber, PCB Material – 30.39 – 91.19 CFM Air Flow – 0.17 – 1.52mm-H2O Fan Air Pressure – 500-1,500 RPM – 22~33 dBA noise Level – Fluid Dynamic Bearing (FDB) – 4-Pin PWM – HF-28140-B1 – 2 Years Limited Warranty