The RMK-5-751+ from Mini Circuits is a Frequency Multiplier with Input Frequency 100 to 150 MHz, Output Frequency 500 to 750 MHz, Input Power 17 dBm, Harmonics -1 to 62 dBc, Conversion Loss 22 to 24.5 dB. Tags: Surface Mount. More details for RMK-5-751+ can be seen below.