The M9-4262 from Marki Microwave is a RF Mixer with RF Frequency 42000 to 62000 MHz, LO Frequency 39000 to 41000 MHz, IF Frequency 2 to 22 GHz, Conversion Loss 12 dB, LO/RF Isolation 30 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for M9-4262 can be seen below.