New and unused. In original packaging. Type N Male Positive Stop™ for 1/2 in AL4RPV-50, LDF4-50A, HL4RPV-50 cable. Ease connector attachment issues and ensure excellent RF transmission line performance with Positive Stop Connectors. Revolutionary Positive Stop Connectors for HELIAX corrugated coaxial cables require no special tools or torque wrenches, eliminating both guess work and time-consuming measurements.