Item Type: Chassis Cooling Fan <br>Inner Ring Diameter: Approx. 10.8cm / 4.3in <br>Outer Ring Diameter: Approx. 12cm / 4.7in <br>Number of Fan Blades: 11 <br>Interface: Big 4pin <br>Fan Speed: 1100 rpm ± 10% <br>Noise Level: 23dBA <br>Airflow: 45 CFM <br>Rated Voltage: DC 12V <br>Rated Current: 0.17 ± 0.03A <br>Bearing Type: Sleeve bearing <br>MTBF: 20,000 hours <br>How to Use: <br>1. Disassemble the case and find a suitable interface that can be connected to the large 4pin; <br>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; <br>Packing List: <br>1 x Cooling Fan1、Large air volume design, adopting axial light emitting mode, 11 fan blades can achieve large-volume heat dissipation. <br>2、Bright and colorful luminous colors, giving you a super cool visual experience. <br>3、The enhanced frame design can effectively protect the fan from deformation. <br>4、Cool lighting with soft fan blades can find different aesthetics, giving you a different visual experience. <br>5、Can work silently and shockproof, so that you will not be disturbed by noise.1. Please confirm whether there is an applicable interface in the computer case; <br>2. Remember to align the corresponding interface and insert.1 x Cooling Fan