The AT-AM4-2040-18XC from AT Microwave is a Frequency Multiplier with Input Frequency 5 to 10 GHz (Input), 20 to 40 GHz(Output), Output Frequency 20 to 40 GHz, Input Power 0 to 6 dBm, Output Power 17 to 18 dBm, Frequnecy 5 to 10 GHz. Tags: Module with Connectors, Active. More details for AT-AM4-2040-18XC can be seen below.