Heavy duty cooling fan, 120x120x25 mm, 24V, 4-pin PWM, IP67 certified, max. 3000 RPM, max. 41, 5 dB (A), > 150.000 h MTTF ^^ Award-winning 120x25mm fan with Focused Flow frame for high static pressure and superior cooling efficiency ^^ 24V, 3000rpm industrialPPC (Protected Performance Cooling) version with 4-pin connector and PWM speed control (1600rpm max. in 12V PC environments) ^^ High-speed industrialPPC version for industrial heavy-duty applications that require extreme cooling performance and advanced ingress protection ^^ Ruggedised fibre-glass reinforced polyamide construction and IP67 certified water and dust protection