The SFP-2734033N05-28SF-S1 from ERAVANT is a Frequency Multiplier with Input Frequency 8.37 to 13.33 GHz, Output Frequency 26.5 to 40 GHz, Input Power 10 dBm, Harmonics -20 dB, Frequnecy 8.37 to 13.33 GHz. Tags: Module with Connectors, Waveguide, Passive, Waveguide Multiplier. More details for SFP-2734033N05-28SF-S1 can be seen below.