... , CMS(DSS/PSS) & DMSS ModelDH-NVR3804DH-NVR3808DH-NVR3816SystemMain ProcessorHigh performance Dual-core embedded microprocessorOperating SystemEmbedded LINUXSystem ResourcesPentaplex function: live, recording, playback, backup ... Users20 Users simultaneouslyRemote OperationMonitor, PTZ control, Playback, System setting, File download, Log informationHard DiskHard Disk8 SATA ports, 8 HDDs or 6 ...