Despite it's damping it works just fine as a SDI cable, at least up to 50 meters despite it's technical specifications. If you need mer than 50 meters use a proper SDI cable as the "Sommer Cable Vector BNC HDTV DH". I've been using this cable together with BlackMagic mini converter and a DeckLink Quad 2 during a live cast. Can not say anything bad or even less good about this. The cable has high grade BNC connectors. It's German quality right trough! No error margin, since it's not needed!