The QFM2-22000-28000-10 from Qualwave is a Frequency Multiplier with Input Frequency 11 to 14 GHz, Output Frequency 22 to 28 GHz, Input Power 3 to 6 dBm, Output Power 10 dBm, Voltage 5 V. Tags: Module with Connectors, Frequency Doubler. More details for QFM2-22000-28000-10 can be seen below.