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 applications：CCTV/CATV system , Antenna of Television , FM receivers , video camera , monitors , mutiplexers & Quad processor , VCR...ect. Specifications： 1.RJ-45 Female to RJ-45Female , Hi Frquency for both CCTV and CATV use 2.RJ-45 Unshield 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 at 10Amps 7.Insertion Loss：Less than 0.2dB 8.Return Loss (75 ohms)：16dB