Shenzhen Dovina Electronic Technology Co., Ltd. Established in 2014, it is one of the largest distributors of offline sales. We are a team of professionals with an experience in Blockchain Management, Offline Sales, Cryptocurrency Mining, and Graphic card. We provide the original brands with FCC, CE, and RoHS certifications, Including Antminer, Goldshell, Jasminer, iPollo, Avalon, Whatsminer and etc. In order to promise our customers the best shopping experience and shopping guarantee, We have reasonable prices with super fast delivery, and we also have a professional test room and Technical team. All machine we will test one by one. When our customers have problems with the operation of the machine, we will provide technical support to the customer at one time. Sincerity and quality are our mission to achieve benefits for our customers. Welcome to Dovina. You will believe your choice!