Optimal Performance: Designed specifically for models X1/X1C, this mini fan operates at 18000 rpm, ensuring rapid cooling to maintain optimal operating temperatures for 3D printing. Enhanced Durability: Equipped with a cable, this fan is built to withstand continuous operation, providing reliable cooling without the risk of overheating. Easy Installation: This fan comes with a user-friendly setup, making it easy to instal. The cooling fan is used to cool and reduce the temperature of the hot end ceramic heater. The cooling fan is a high-speed rotating component, please do not touch it during operation. Voltage: DC 5V Power: 2W Air volume: 3.2CFM Bearing: Double ball bearing Size: 25 x 25 x 10mm Current: 0.4A Interface: ZX1.25-4P Speed: 18000±5%RPM Temperature range: -10°C-80°C Color: Black Material: plastic Package Contents: 2 * Cooling Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.