The CFM0205X220 from Cernex Inc is a Frequency Multiplier with Input Frequency 2 to 5 GHz, Output Frequency 4 to 10 GHz, Output Power 20 dBm, VSWR 2.00:1, Frequnecy 2 to 5 GHz. Tags: Module with Connectors, Active, Passive. More details for CFM0205X220 can be seen below.