For antminer s9, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our antminer s9 has been well received by many customers and enjoyed a good reputation in many countries. Shenzhen DCE Technology Co., Ltd. antminer s9 have characteristic design & practical performance & competitive price, for more information on the antminer s9, please feel free to contact us.