The A540-4XV-15 from Spacek Labs is a Frequency Multiplier with Input Frequency 13.375 GHz, Output Frequency 53.5 GHz, Output Power 15 dBm, Frequnecy 13.375 GHz, Current 475 mA. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for A540-4XV-15 can be seen below.