The ZX90-12-63+ from Mini Circuits is a Frequency Multiplier with Input Frequency 375 to 500 MHz, Output Frequency 4.5 to 6 GHz, Input Power -4 to 0 dBm, Harmonics 34 to 48 dBc, Conversion Loss 6.5 to 12 dB. Tags: Module with Connectors. More details for ZX90-12-63+ can be seen below.