The CFM0104X420 from Cernex Inc is a Frequency Multiplier with Input Frequency 1.5 to 4.5 GHz, Output Frequency 6 to 18 GHz, Output Power 20 dBm, Harmonics 7 dBc, VSWR 2.00:1. Tags: Module with Connectors, Active, Passive. More details for CFM0104X420 can be seen below.