HD 720p dvr digital video recorder -H.264 realtime HD 720P DVR -USB,PTZ,Audio ... ,Network,VGA -720p realtime record -2 HDD, 4TB 4 channel HD ... Control Support Preset, Patrol, PatternAlarmVideoMotion detection, Video loss detection, Temper detectionIO input/output4CH Input, ... 55(H) * 320 (D) Weight4.5kg HD 720P DVR Digital Video Recorder