The A505-4XW-20 from Spacek Labs is a Frequency Multiplier with Input Frequency 11.25 to 13.75 GHz, Output Frequency 47.5 to 52.5 GHz, Output Power 18 to 20 dBm, Frequnecy 11.25 to 13.75 GHz, Current 900 mA. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for A505-4XW-20 can be seen below.