140 mm Large fan design, large airflow, low noise, super cooling; Bright color design, is very stylish; High strength material application, is very stable. Anti-skid design. Apply to under 14 inch laptop heat dissipation. Rated voltage: DC 5 V. Operating voltage: DC 4.5 ~ 5 V ; Rated current: 0.26 A. Input power: 1.3W. Maximum air volume: 47.35CFM. Noise: 21 dB.