The C-DVR Blackbox has the ability to record 2 video channels independently, triggered by camera power reference. In the event of power loss the C-DVR has an internal battery backup, which keeps the recording devices live and also has the function of an emergency power backup to keep the cameras powered up.
The C-DVR also includes front USB ports for downloading internally stored videos to external storage devices. The USB ports can also be used to simultaneously record to both internal and external storage devices.
