Thank you for choosing Deepcool. If there is a quality problem with the product, and you can't get after-sales service directly from the seller where you purchased the product from, please fill in the following form and contact our customer support team. Our support team will contact you as soon as possible to provide you with further help. The more complete the form is, the more helpful it will be for us to understand the situation and provide efficient help. Thank you for your cooperation!