... & AlarmBackup ModeFlash drive/USB HDD/USB CD/DVR-RW/Network downloadAlarm Input/Output8 Channel/1 ChannelNetworkNetwork ... Email, Alarm Server, ARSPRemote OperationMonitor, PTZ control, Playback, System setting, File download, Log informationHard DiskHard Disk2 SATA port, ... 24ch dvr stand alone h 264 embedded dvr Professional CCTV DVR system EDR-9824 High performanc H 264 24 CH Stand alone DVR kit