RF Coaxial Adapter N Male Connector to F female or N female to SMA male Connector for 2G 3G 4G Signal Repeater Booster Amplifier
https://www.vogueparade.com/shopping/EN/200004343/1/4000031532392/rf-coaxial-adapter-n-male-connector-to-f-female-or-n-female-to-sma-male-connector-for-2g-3g-4g-signal-repeater-booster-amplifier//