Features: BNC male to BNC female with mini cable on both sides. Compact size and easy installation. 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. 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. Wave Filter Design, Anti- Static Design Lightning protection design Grade: III 60 dB crosstalk and noise immunity Exceptional interference rejection. Video signal strength is stronger than filtered.Specification: Item Type: Ground Loop Isolator Shell Material: Plastic Color: Black Package Weight: 38g/1.34oz Item Size: 50 * 20 * 20mm/1.96 * 0.78 * 0.78inch(Approx.) Insertion loss 0.5db Frequency response 0-3db at 10 MHZ Input Resistance 75ohm Output Resistance 75ohm Isolation Voltage 600VDC(Min) Insulation resistance 100m Ohm Transient Voltage suppressors 12 Vrms Cable length: 30cm( approx) Design: ABS plastic injection-wide, waterproof, compactPackage List: 1 * Ground Loop Isolator