The ND2640G20P20 from Norden Millimeter is a Frequency Multiplier with Input Frequency 13.25 to 20 GHz, Output Frequency 26.5 to 40 GHz, Input Power 0 to 5 dBm, Output Power 20 dBm, Harmonics 20 dBc. Tags: Module with Connectors, Waveguide, Waveguide Multiplier. More details for ND2640G20P20 can be seen below.