Shenzhen Uniontop Electronics Co., Ltd. was established in 2001, located in Shenzhen, Guangdong, China. Our company is a high-tech enterprise specializing in developing, producing and operating switching power supply .ac adapter.cable Uniontop integrates designing, molding, manufacturing, testing, and finishing products. We comprise with a team of professional engineers and managers together with the sophisticated equipments for production and inspection. We have set up a standardized production workshop and a creative R&D base. We can do OEM products for a given brand and design all kinds of practical products as customers' requests, and response to the rapidly changing market quickly. ......