The SFP-223SF-S1 from ERAVANT is a Frequency Multiplier with Input Frequency 11 to 16.67 GHz, Output Frequency 33 to 50 GHz, Input Power 20 dBm, Harmonics 20 dB, Frequnecy 11 to 16.67 GHz. Tags: Module with Connectors, Waveguide, Passive, Waveguide Multiplier. More details for SFP-223SF-S1 can be seen below.