1、Super ventilation, super wind pressure, cooling effect is remarkable. 2、Incoming PBT anti-plastic material, environmental protection fire, no deformation at high temperature. 3、Using Taiwan imported chips, low power consumption, can do PWM function. 4、Environmental protection, safe, harmless. 5、High quality raw materials, fine workmanship. 100% brand new and high quality! High quality 3D printer accessories, blower. Can perfectly solve your 3D printer cooling problem. Features: 1. Super ventilation, super wind pressure, cooling effect is remarkable. 2. Incoming PBT anti-plastic material, environmental protection fire, no deformation at high temperature. 3. Using Taiwan imported chips, low power consumption, can do PWM function. 4. Environmental protection, safe, harmless. 5. High quality raw materials, fine workmanship. Specification: Condition: 100% Brand New Material: ABS Color: Black Size: Approx. 40 * 40 * 20 mm / 1.5 * 1.5 * 0.7 inch Model: 4020 Blower Fan model: DFS4020 Rated Voltage: DC12V / DC24V (optional) Voltage Range: 10.8V-13.2V Input Current: 0.05-0.20 A Rated Speed: 4000-6000r.p.m Working Temperature: -10 ..110 °C Storage Temperature: -40---110 °C Air Volume Range: 2.90-4.10 CFM Wind Pressure Range: 4.90-8.50mmH2O Noise Index: 25.5-34.8dB Weight: Approx. 23 g Package List: 1 * Fan Note: 1.Please allow 1-3 cm error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.