Quick overview from the supplier:
PC Case Fan Deepcool GamerStorm GS120, 120x120x20mm, 18-32dB, 900-1800RPM, 62CFM, PWM, Hydro Bearing
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Overall Dimension 120×120×20mm
Net Weight 110g
Bearing Type Hydro Bearing
Rated Voltage 12VDC
Operating Voltage 10.8~13.2VDC
Started Voltage 7VDC
Rated Current 0.21±10%A(MAX)
Power Input 2.52W
Fan Speed 900±150-1800±10%RPM
Fan Connectors 4-pin for motherboard & 4-pin for PSU
Max. Air Flow 61.93CFM
Noise 18.2~32.4dB
EAN 6933412712176
P/N DPGS-FGS-GS120
http://www.gamerstorm.com/product/CASEFAN/2016-03/1289_4949.shtml