Specifications include, but are not limited to: NVR (Network Video Recorder) - Each NVR will support a minimum playback rate of 20 frames per second per camera, and at least 25 days or up to 250 hours recording time (including audio). - The information recorded by the NVR shall be easily downloaded to a standard PC utilizing Microsoft Window operating system. - The NVR (Server) will be configured with hard disk redundancy to protect against disk failures. - The NVR (Server) hardware must be capable of running Microsoft Windows and the Avigilon Control Center version 7. - The NVR shall be able to retrieve video by alarm, calendar based date, time and camera search functions. - The NVR shall be capable of a display resolution of 1080p.