The RMK-5-2751+ from Mini Circuits is a Frequency Multiplier with Input Frequency 450 to 550 MHz, Output Frequency 2.25 to 2.75 GHz, Input Power 17 dBm, Harmonics 4.8 to 67.8 dBc, Conversion Loss 22 to 24.5 dB. Tags: Surface Mount. More details for RMK-5-2751+ can be seen below.