A:AnswerYes, this will be compatible with DVRs that accommodate external storage expansion and have a USB 3.0 interface. It will not work if it only requires an internal hard drive.
A:AnswerIf you are just backing up data, such as, movie, videos, pictures, etc. You just copy it to the hard drive. If you are backing date up from more than one laptop or PC you might want to make separate folders to hold the information from each computer. I use these all the time.