The 3200J series Tube-axial DC Fan with electronically commutated external rotor motor. It features fully integrated commutation electronics and compact design with high power density and electronic protection against reverse polarity, blocking and overloading. Compression-rigid curve and low noise factor Fan of fibreglass reinforced plastic PBTP housing, PA impeller Air exhaust over struts Rotational direction CW looking at rotor Voltage - Rated 12VDC Size / Dimension Square - 92mm L x 92mm H Width 38.00mm Air Flow 86.0 CFM (2.41m³/min) Bearing Type Ball Fan Type Tubeaxial Noise 55.0 dB(A) Power (Watts) 9W RPM 6800 RPM Termination 2 Wire Leads Operating Temperature -4 ~ 158°F (-20 ~ 70°C)