The EZ-400-SF-X eliminates assembly errors and soldering with crimp-style outer contacts and spring finger inner contacts. It features a no-braid trim design, eliminating FOD and guaranteeing an optimal and consistent termination. The BeCu pins are designed to maximize surface contact and minimize current density. They provide a strong spring force making the EZ connectors a perfect choice for extreme cold and high- vibration applications where the center conductor might contract. SMA connectors are a lightweight, compact, high-performance coaxial RF connectors designed with a threaded coupling. This is a female (jack), straight connector for 400 size cables.