The CFM1720X405 from Cernex Inc is a Frequency Multiplier with Input Frequency 17.5 to 20 GHz, Output Frequency 70 to 80 GHz, Input Power 10 dBm, Output Power 5 dBm, Harmonics 20 dBc. Tags: Module with Connectors, Active, Passive. More details for CFM1720X405 can be seen below.