The CFM0203X220 from Cernex Inc is a Frequency Multiplier with Input Frequency 2.8 to 3.8 GHz, Output Frequency 5.6 to 7.6 GHz, Output Power 20 dBm, Harmonics 10 dBc, VSWR 2.00:1. Tags: Module with Connectors, Active, Passive. More details for CFM0203X220 can be seen below.