Use the 3GHz F-Splice Adapter for extending coaxial cable runs for all cable and satellite TV applications including High Definition.Attach F-connectors to both ends of the barrel splice to join the cables together.Best for High Definition applicationsNickel plated brass constuctionFor 75O applications up to 3GHzAccepts male F connectors on both sidesHigh bandwidth 0MHz to 3GHz for standard and high definition applicationsLong body style for wallplate upgrades< 0.25 dB insertion loss to maintain signal strength> 25 dB return loss for less picture distortion