The SFP-05210-U5 from ERAVANT is a Frequency Multiplier with Input Frequency 70 to 110 GHz, Output Frequency 140 to 220 GHz, Input Power 17 dBm, Output Power -3 dBm, Harmonics 20 dB. Tags: Waveguide, Passive, Waveguide Multiplier. More details for SFP-05210-U5 can be seen below.