The M8-0618 from Marki Microwave is a RF Mixer with RF Frequency 6000 to 18000 MHz, LO Frequency 6000 to 18000 MHz, IF Frequency DC to 3 GHz, Conversion Loss 5.5 dB, LO/RF Isolation 40 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for M8-0618 can be seen below.