Attention This warranty covers the Canaan Creative CO., LTD (“Canaan”) products. 180 days Warranty Canaan warrants the purchased product(s) to be free of all defects in material, performance and workmanship for 180 days for products from the date of the delivery. This warranty extends to the original buyer (and each successive buyer within the warranty period). Within the period of this warranty, Canaan will repair or replace, free of charge, any part proven defective in material, performance or workmanship, but mining earnings will not be compensated. You can work with Canaan after sales engineers online to find out the faulty parts, then we can send you the replacement parts directly via the express companies. In this condition, Canaan will pay the shipping cost of the replacement units shipment. You can also choose to return the faulty machines to Canaan. In this condition, Buyers pay inbound shipping and we will pay the return shipping. Please note that we are not responsible for any loss caused by customs delays, losses or charges. This above warranty does not apply to any costs, repairs, or services caused by any use other than normal use, or damage resulting from current surge, water damages, abuse, accidents, fire, flood, overclocking, unauthorized alterations, or improper installation or use with products not approved or instructed by the Seller. “Overclocking” means a manual increase of the CPU’s processing speed, and does not include turbo speeds initiated by the processor itself as designed by Avalon.