The HAFMV4-157 from HXI is a Frequency Multiplier with Input Frequency 25.5 to 27.5 GHz, Output Frequency 51.0 to 55.0 GHz, Input Power 10 dBm, Output Power 15 dBm, Frequnecy 25.5 to 27.5 GHz. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for HAFMV4-157 can be seen below.