The ZFM-3 from Mini Circuits is a RF Mixer with RF Frequency 0 to 400 MHz, LO Frequency 0 to 0.04 MHz, IF Frequency 0 to 400 MHz, Conversion Loss 4.78 to 8 dB, LO/RF Isolation 50 dB. Tags: Module with Connectors. More details for ZFM-3 can be seen below.