Product information:

Input power: 4.5W
Product color: black
Speed of small fan: 1500±10%RPM
Big fan speed: 1400 soil 10% RPM
Power interface: USB interface
Rated current: 0.9A
Noise value: 21-23DBA

Packing list: 

1*radiator base+1*USB cable

Size Information:

Product size: 410*270*34mm
Fan size: 100*100*20mm (2 large) 70*70* 20mm (4 small)