... >RegularRecording Interval1~120 min. (default: 60 min.), Pre-record: 1~30 sec., Post-record: 10~300 sec.Video Detection & AlarmTrigger EventsRecording, PTZ ... , Alarm ServerRemote OperationMonitor, PTZ control, Playback, System setting, File download, Log informationHard DiskHard Disk2 SATA port, Max 4TB HDD supportedSpace OccupationAudio ...