Compact size and easy installation. BNC male to BNC female with mini cable on both sides. Passive, no power required. Prevents video-signal distortion caused by video ground loops.Eliminates picture tearing , cross talk and rolling Built in video BALUN, perfect to work with DVR to immunity DVR interference , for extra interference rejection Built in TVS for surge protection. No filter ground isolator, suitable for coaxial grounding isolation.Applicable to LED display,motor,audio,photovoltaic,panels,navigators fans,monitoring,industrial power and other equipment.HD-TVI/CVI/AHD/CVBS 4 in 1 ground loop lsolated videa Balun. Up to 230m(754ft)for HD-TVI Hikvision 720p camera Up to 250m(820ft)for HD-TVI Hikvision 1080p camera Up to 440m( 1443f) for HD-CVI Dahua 720p camera. Up to 240m(787f) for HD-CVI Dahua 1080p camera. Up to 320m( 1053t)for AHD 1080p camera. Up to 330m(1082ft) for AHD 1080p camera.