The increased power density of electronic components means that devices producing a high level of waste heat are more tightly packed than ever before. S-Force fans dissipate heat with airflow levels of up to 950m/h at system pressures of up to 1200 Pascals. At full load (approximately 14,000rpm) they provide up to 100% more output than their predecessors but work within a wider airflow range. Intelligent motors Optimum cooling Standard dimensions (of previous fans) make converting, upgrading or retrofitting easy Reverse polarity Overload protection Voltage - Rated 48VDC Size / Dimension Round - 171.5mm Dia Width 50.80mm Air Flow 320.8 CFM (8.98m³/min) Bearing Type Ball Fan Type Tubeaxial Noise 58.0 dB(A) Power (Watts) 31.00W RPM 5000 RPM Termination 2 Wire Leads Ingress Protection IP68 - Dust Tight, Waterproof Operating Temperature -4 ~ 149°F (-20 ~ 65°C)