The MX2J040080-2C from Narda-MITEQ is a Frequency Multiplier with Input Frequency 2 to 4 GHz, Output Frequency 4 to 8 GHz, Input Power 3 to 8 dBm, Output Power 10 dBm, Harmonics 20 dBc. Tags: Module with Connectors, Passive. More details for MX2J040080-2C can be seen below.