4PCS 3D Printer Cooling Fan 4020 DC Voltage Brushless 5V Quiet 40x40x20mm Mini 2
Wide Range of Applications?. DC 5V Brushless Cooling Fan widely used for 3D Printer and other PC CPU. 4 × 5V 4020 3D Printer Fan. Convenient Installation?. This 3D Printer Fan consists of three simple components.