Delta Electronics AUB DC Axial Fans are general axial fans featuring an advanced Superflo bearing system for high performance and long life (50,000 hours). Delta AUB is a standard DC axial fan with plastic impeller and frame. FEATURES Bearing type - Superflo bearing Impeller and frame material - plastic (UL 94V-0) Lead wires UL 1007 AWG #24 or equivalent Red wire positive (+) Black wire negative (-) Voltage - Rated 12VDC Size / Dimension Square - 80mm L x 80mm H Width 25.40mm Air Flow 46.6 CFM (1.30m³/min) Bearing Type Superflo Fan Type Tubeaxial Noise 39.0 dB(A) Power (Watts) 3.24W RPM 3600 RPM Termination 2 Wire Leads Operating Temperature 14 ~ 140°F (-10 ~ 60°C) Weight 0.194 lb (88g) Current Rating (Amps) 0.270A Voltage Range 7 ~ 13.8VDC