5pcs 0.5ft Rf Electrical Wire Connector BNC Male to MCX Female Coaxial Cable Extension Rg316 15cm for Wireless Antenna BNC connector with bayonet connection for frequency less than 4GHz radio frequency connection, MCX use a snap-on interface and usually have a 50  impedance (some are 75 ) . They offer broadband capability from DC to 6 GHz. The contact surfaces are gold-plated. Multi-function: In addition to the role of bridges, it also has the function of processing signals, such as filtering, phase adjustment, mixing, attenuation, detection, limiting and so on Features: Product reliability, failure modes and failure mechanisms are complex. Slow product replacement RF Coaxial Connector Applicationcommunications, communications and networks Traffic monitoring system;Medical machinery; Instrumentation connection