The MK-3 from Mini Circuits is a Frequency Multiplier with Input Frequency 0.05 to 150 MHz, Output Frequency 0.1 to 300 MHz, Input Power 0 to 13 dBm, Harmonics 16 to 40 dBc, Conversion Loss 11 to 17 dB. Tags: Module with Connectors. More details for MK-3 can be seen below.