The CFM0304X320 from Cernex Inc is a Frequency Multiplier with Input Frequency 3 to 4 GHz, Output Frequency 9 to 12 GHz, Output Power 20 dBm, VSWR 2.00:1, Frequnecy 3 to 4 GHz. Tags: Module with Connectors, Active, Passive. More details for CFM0304X320 can be seen below.