140 mm dual-fan design, large airflow, low noise, super cooling; Bright color design, is very stylish; High strength material application, is very stable. Apply to under 15.4 inch laptop heat dissipation. Rated voltage: DC 5 V. Operating voltage: DC 4.5 ~ 5 V ; Rated current: 0.25 A. Input power: 1.5W. Maximum air volume: 94.7 CFM. Noise: 25.1 dB.