The MX4-10300-10K from NI Microwave Components is a Frequency Multiplier with Input Frequency 9.8 to 10.8 GHz, Output Frequency 39 to 43 GHz, Input Power -10 dBm, Output Power 17 dBm, Sub-Harmonic Suppression 3 dBc. Tags: Module with Connectors. More details for MX4-10300-10K can be seen below.