This section presents additional equipment for video surveillance systems - storage devices for recording (HDD disks, SD cards), devices for lightning protection and video signal improvement, devices for video signal transmission via twisted pair. Also, an important part of the video surveillance system at a large object is specialized software, which allows you to turn a set of video cameras and video recorders into an intelligent information system that monitors and warns of unauthorized situations (detection of abandoned objects, detection of missing objects, recognition of persons, etc.).