The M4-0040LJV from Marki Microwave is a RF Mixer with RF Frequency 0.5 to 40 GHz, LO Frequency 0.5 to 40 GHz, IF Frequency DC to 400 MHz, Conversion Loss 8 to 12 dB, LO Drive - Power 10 to 13 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for M4-0040LJV can be seen below.