The M1-0204MP from Marki Microwave is a RF Mixer with RF Frequency 2 to 4 GHz, LO Frequency 2 to 4 GHz, IF Frequency DC to 2000 MHz, Conversion Loss 5 to 8 dB, LO Drive - Power 10 to 13 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for M1-0204MP can be seen below.