The ZFM-2 from Mini Circuits is a RF Mixer with RF Frequency 0 to 1000 MHz, LO Frequency 0 to 1 MHz, IF Frequency 0 to 1000 MHz, Conversion Loss 5.72 to 8.5 dB, LO/RF Isolation 40 dB. Tags: Module with Connectors. More details for ZFM-2 can be seen below.