The 210A from ACST GmbH is a Frequency Multiplier with Input Frequency 67.50 to 80 GHz, Output Frequency 135 to 160 GHz, Input Power 100 to 600 mW, Output Power 23.01 dBm, Frequnecy 67.50 to 80 GHz. Tags: Waveguide, Passive, Waveguide Multiplier. More details for 210A can be seen below.