Cellphone-Mate SMA Male to FME Male Connector RF Adapter Cellphone-Mate SMA Male to FME Male Connector RF Adapter (Part # CM-CN-06) This is an SMA Male to FME Male Radio Frequency Adapter / Connector. Impedance: 50 Ohms Voltage Rating: 500 Volts Peak Frequency Range: DC ~ 11 GHz