The A8520-4XW from Spacek Labs is a Frequency Multiplier with Input Frequency 18.7 to 23.7 GHz, Output Frequency 75 to 95 GHz, Output Power 2 dBm, Frequnecy 18.7 to 23.7 GHz, Current 650 mA. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for A8520-4XW can be seen below.