Bear "Customer first, Quality first" in mind, we work closely with our customers and provide them with efficient and professional services for S9 Antminer, Antminer E3 2021 , Antminer E9 , A10 Pro 7g 750mh ,S19 Pro Miner . We believe that our warm and professional service will bring you pleasant surprises as well as fortune. The product will supply to all over the world, such as Europe, America, Australia,French, Miami,Czech Republic, Berlin.We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information and we will offer you competitive price list then.