D-Link DNS 726-4 Professional Network Video Recorder (NVR) offers a comprehensive solution for displaying, storing and managing video data received from IP cameras. With remote monitoring with high resolution in a fraction of the cost, it improved greatly from traditional CCTV surveillance systems. The unit itself is compact and includes a physical security lock. Uninterruptible power supplies (UPS) can be used as emergency power source for NVR, a USB interface. Intuitive user interface accessible through a Web browser allows real-time display of up to 4 cameras (models from D-Link, Sony, Panasonic and Axis are supported) or on-site or remotely over the Internet. Various options are available, including Pan / Tilt / Zoom (PTZ) control and bilateral audio. Each camera can be set independently to record continuously or at set intervals or when motion is detected. A dedicated PC is required. The data will be on one or two hard drives (not 3.5 "SATA, included), reproduced in a secure database with the technology of RAID 1 for a full backup is stored. The video data can easily be in AVI or ASF format to export. NVR central control of the digital output, e-mail alerts and logging of all connected cameras can. With the "quick search" technology, a specific area of the image are selected and searched for events such as traffic, with varying degrees of sensitivity. D-Link D-ViewCam Powerful NVR software is combined with D-Link DNS-726 to 4. Using a simple Web interface, the operator can easily drag and drop type of display, search, and export video and backup of video data from the NVR to external storage devices. NVRs Total 4 to 16 cameras can be combined and managed in this way.