The AU-4XW from Spacek Labs is a Frequency Multiplier with Input Frequency 10 to 15 GHz, Output Frequency 40 to 60 GHz, Input Power 12 dBm, Output Power 4 dBm, Frequnecy 10 to 15 GHz. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for AU-4XW can be seen below.