Embedded dual 8 cm ultra silent fans to prevent overheating problems of notebooks and maintain the regular operation
3D airflow outlet enhances heat dissipation and keep long life time for NB
Lightweight design: easy to carry
USB interface : universal Plug and Play feature
Excellent airflow design maximizes heat dissipation of the base of your NB  

Specifications 
Outline Dimension 300 x 228 x 20 mm
Fan Dimension 80 x 80 x 15 mm (2 PCS)
Rated Voltage 5 VDC
Power Consumption 1.2 W
Noise Level(FAN) < 13.8 dBA
Bearing type Z-axis BEARING