The CFM0203X820 from Cernex Inc is a Frequency Multiplier with Input Frequency 2.25 to 3.25 GHz, Output Frequency 18 to 26 GHz, Output Power 20 dBm, Harmonics 5 dBc, VSWR 2.00:1. Tags: Module with Connectors, Active, Passive. More details for CFM0203X820 can be seen below.