Feature: 1. Large air volume design, adopting axial light emitting mode, 11 fan blades can achieve large-volume heat dissipation. 2. Bright and colorful luminous colors, giving you a super cool visual experience. 3. The enhanced frame design can effectively protect the fan from deformation. 4. Cool lighting with soft fan blades can find different aesthetics, giving you a different visual experience. 5. Can work silently and shockproof, so that you will not be disturbed by noise. Specification: Item Type: Chassis Cooling FanInner Ring Diameter: Approx. 10.8cm / 4.3in Outer Ring Diameter: Approx. 12cm / 4.7in Number of Fan Blades: 11 Interface: Big 4pin Fan Speed: 1100 rpm ± 10% Noise Level: 23dBA Airflow: 45 CFM Rated Voltage: DC 12V Rated Current: 0.17 ± 0.03A Bearing Type: Sleeve bearing MTBF: 20,000 hours How to Use: 1. Disassemble the case and find a suitable interface that can be connected to the large 4pin; 2. The large 4pin of the cooling fan is aligned with the interface and inserted, and the computer can be used when it is turned on; Packing List: 1 x Cooling Fan. Package List: 1 x Cooling Fan Note: 1. Please confirm whether there is an applicable interface in the computer case;2. Remember to align the corresponding interface and insert.