German digital data communication GmbH established the level one brand in 1998, which mainly provides high-quality network products and solutions for individuals and enterprises, including routers, powerline / POE network products, switches, multimedia digital signage solutions, etc.. In recent years, it has also been committed to the digital monitoring market, providing a series of network cameras, Image storage (NVR) and monitoring software. DDC group has more than 25 years of experience in product design and manufacturing, with branches in 20 countries and sales in more than 70 countries.