The QFM2-20000-40000-26S from Qualwave is a Frequency Multiplier with Input Frequency 10 to 20 GHz, Output Frequency 20 to 40 GHz, Input Power 1 to 10 dBm, Output Power 26 dBm, Harmonics -15 dBc. Tags: Module with Connectors, Frequency Doubler. More details for QFM2-20000-40000-26S can be seen below.