Heavy duty cooling fan, 120x120x25 mm, 12V, 4-pin PWM, max. 2000 RPM, max. 29.7 dB(A), >150,000 h MTTF Award-winning 120x25mm fan with Focused Flow frame for high static pressure and superior cooling efficiency 12V 2000rpm model (29.7dB) with 4-pin PWM connector for automatic speed control via 4-pin PWM fan headers, broad 450-2000rpm speed range 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 IP52 certified water and dust protection