DS-7600NI-E1/4P and DS-7600NI-E2/8P series NVR (Network Video Recorder) is a new generation recorder developed by Hikvision independently. C ombined with multiple advanced technologies, such as audio and video decoding technology, embedded system technology, storage technology, network technology and intelligent technology. I t can both work alone as a recorder and cooperate with other device to form a comprehensive surveillance system. The DS-7600NI-E1/4P and DS-7600NI-E2/8P series NVR are widely applied in the areas of finance, public security, military, communication, transp ortation, education , etc..