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Hello dear customer.thank you for your purchase.If you encounter product problems or operational problems and other problems, you can contact our customer service immediately, and we will solve the problem for you within 24 hours.Please be sure to contact our customer service.I wish you a happy life! ! ! Product Description Connector: 2-pin Cable length: 20cm(7.87in) Voltage: DC 12V Rated Current:0.1A±10% Bearing: Sleeve Bearing Fan Speed:7000 r/min Dimension:40x40X10mm Package included：4 x 4010 Cooling Computer Fan