Optimized Cooling Solution: Specifically designed for A1 and A1 Mini 3D printers, this hotend cooling fan ensures your printer operates efficiently. It's perfect for maintaining optimal performance and extending the lifespan of your printer. and Reliable: Crafted from high-quality materials, this replacement fan is built to last, providing a dependable cooling solution for your 3D printing needs. Easy Installation: This fan is user-friendly and can be installed quickly and easily, making it ideal for both beginners and experienced users looking to enhance their 3D printer's performance. Specification: Voltage: DC 5V Current: 0.4A Speed: 20,000 RPM Airflow: 3.2 CFM Bearing: Double ball Temperature Range: -10-80°C Color: Black Material: plastic Package Contents: 1* Hotend 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.