PC Fan - size: 140 × 25mm, 500 RPM - 2000 RPM, 12 V, maximum noise level of up to 31,5 dB, 4pin PWM, PWM This fan is designed for industrial use as well as for demanding modifiers. It meets the demands of high cooling power and adds advanced dust-proofing protection (IP52), thus enhancing the environment. Thanks to the excellent aerodynamic efficiency of the design and the use of a new three-phase motor, it delivers excellent airflow while maintaining a low noise level. It is therefore the ideal choice for very demanding applications that require excellent flow and maximum operational reliability .The blade design was specially designed for high cooling efficiency and quieter operation. The polyamide structure is glass fiber reinforced and has an integrated SSO syste , a combination of proven hydrodynamic bearing design with an additional magnet supporting separate rotor axis stabilisation. The proven proprietary Noctua bearings provide you with...