Shenzhen Dongtu Technology Co., Ltd., established in 2016,Our factory and office are located in Shenzhen City, Guangdong Province, China, covering an area of about 3000 square meters. is an enterprise focusing on R&D, production and sales of industrial Ethernet switches, transceivers, serial servers, industrial interface conversion, wireless transmission, and other intelligent communication equipment. Products are used in power systems, It has been widely used in intelligent transportation, industrial automation, power environment, mineral energy, security systems and other fields, and has accumulated a lot of successful experience, and its products are exported all over the world.