DS-7100NI-SN/P series NVR (Network Video Recorder) was developed by Hikvision independently. It is combined with multiple advanced technologies, such as audio and video decoding technology, embedded system technology, storage technology, network technology and intelligent technology. It can work alone as a recorder and cooperate with other devices to form a comprehensive surveillance system. The DS-7100NI-SN/P series NVR is widely applied in the areas of finance, public security, military, communication, transportation, education, etc.