This HD Series 6 GHz BNC 3-Piece Crimp Connector from Belden, available here in a pack of 50, is designed for use with a Belden RG59 coax cable. It has an impedance rating of 75 Ohms and delivers a minimum return loss of 7 to 15 dB at 6000 to 5 MHz. With its traditional three-piece design, the nickel-plated brass connector offers durability and a solid performance. The connector's design includes an extended head knurl nut for easy gripping when installing. A red ring identifies its compatibility with 1505A RG59 coax cables.