The MAX4H050055 from Narda-MITEQ is a Frequency Multiplier with Input Frequency 1.25 to 1.375 GHz, Output Frequency 5 to 5.5 GHz, Input Power 12 to 16 dBm, Output Power 12 dBm, VSWR 2.00:1. Tags: Module with Connectors, Active. More details for MAX4H050055 can be seen below.