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What's the difference between a security camera  DVR and a security camera NVR? Good morning,   everyone. Mike, from CCTV Camera Pros here.  In this video, I'm going to discuss some of   the similarities and differences and when you  should consider buying a DVR versus an NVR.  So let's first start out with some basics. I'll  assume that you really don't know anything about   either of these products and you might  be confused because some people online   use NVR and DVR interchangeably. Generally in the surveillance industry,   when you are referring to a DVR, digital video  recorder, you are almost always talking about BNC   cameras or CCTV cameras. Cameras that use coax  video cable and BNC connectors on the ends.  Generally, when you're referring to an NVR  or network video recorder, you're referring   to network IP cameras. IP cameras that work  over network cable, such as CAT5 or