The SFP-123KF-S1 from ERAVANT is a Frequency Multiplier with Input Frequency 20 to 30 GHz, Output Frequency 60 to 90 GHz, Input Power 20 dBm, Harmonics 20 dB, Frequnecy 20 to 30 GHz. Tags: Module with Connectors, Waveguide, Passive, Waveguide Multiplier. More details for SFP-123KF-S1 can be seen below.