The M9-0943 from Marki Microwave is a RF Mixer with RF Frequency 9000 to 43000 MHz, LO Frequency 9000 to 43000 MHz, IF Frequency DC to 43 GHz, Conversion Loss 8 dB, Operating Temperature Tested at +25°C. Tags: Module with Connectors, Double Balanced Mixer. More details for M9-0943 can be seen below.