E-castle was established in 2002 and has been developing high value-added products of digital recording system based on Mpeg4 and H.264 hardware codec. All our staffs constantly test every product for its compatibility, quality, value, and stability. Furthermore we have continued to develop new technology, and invest new possibility to be a leading company in global market. We believe that our technology will definitely lead us to the best company and we will be your international business partner to make mutual benefit to each other.Thank you for your attention to E-castle.