The 210B from ACST GmbH is a Frequency Multiplier with Input Frequency 77.50 to 92.5 GHz, Output Frequency 155 to 185 GHz, Input Power 100 to 600 mW, Output Power 23.01 dBm, Frequnecy 77.50 to 92.5 GHz. Tags: Waveguide, Passive, Waveguide Multiplier. More details for 210B can be seen below.