... dvr digital video recorder -H.264 realtime HD 720P DVR -USB,PTZ,Audio,Network,VGA -720p realtime record -2 HDD, 4TB 4 channel HD DVR ... CPU; Steady System Function;4. Playback, video, network transmission, mobile browsing, and backup etc. work simultaneously;5. Access ... real-time preview, settings, backup and playback video through IE; 6. Recording Resolution up to 720P. Specification: BCS- ...