Feature： 1.Performs a different function than grounding requirements 2.Protects equipment from high voltage surges from nearby lightning strikes. 3.Two stage protection：under 1ns-90V , over 10ns-12V. 4.Wide range of application：CCTV/CATV system , Antenna of Television , FM receivers , video camera , monirors , multiplexers & Quad processor , VCR...etc.  Specifications： 1.BNC male to BNC female , Hi Frequency for both CCTV and CATV use 2.Surge Protection Attack Time：1 ns          a.Maximum Surge Current：4 KV          b.Surge Life：300 surge of 100Amps 3.Normal Resistance Across Coax：10,000 M ohm 4.Surge Resistance Approx：0 ohm 5.BAND PASS：0~1 GHZ 6.Power Passing Capability 130V AC/DC , 65 Vrms 10Amps 7.Insertion Loss：Less than 0.2dB 8.Return Loss (75 ohms)：16dB