The MAX4M139144 from Narda-MITEQ is a Frequency Multiplier with Input Frequency 3.48 to 3.61 GHz, Output Frequency 13.92 to 14.44 GHz, Input Power 8 to 10 dBm, Output Power 8 dBm, VSWR 2.00:1. Tags: Module with Connectors, Active. More details for MAX4M139144 can be seen below.