The CFM0303X320 from Cernex Inc is a Frequency Multiplier with Input Frequency 3 to 3.8 GHz, Output Frequency 9 to 11.4 GHz, Output Power 20 dBm, Harmonics 7 dBc, VSWR 2.00:1. Tags: Module with Connectors, Active, Passive. More details for CFM0303X320 can be seen below.