Product detailsNew and 3 months WarrantyEach Cooling Fan is tested before shipping and 100% workingContact us:1. If you have any question please contact us. Your satisfaction is our top priority .2. If you receive the goods with not satisfied,please contact us .We will reply you within 12 hours.We will deal well with it, try to e you happy.please trust us .3 If you still don’t receive the goods within 15 working days after you p ,please contact us.we could check it for you.Feedback :1. If you are satisfied with our goods, please give us a positive feedback, thank you for your aistance2. If you are not satisfied with our goods, please let us know. we will try our best to help you solvethe problem.We will strive to improve ,thank you for your understanding.