The M9-0444INV from Marki Microwave is a RF Mixer with RF Frequency 4 to 44 GHz, LO Frequency 4 to 44 GHz, IF Frequency DC to 3 GHz, Conversion Loss 7.5 to 12.5 dB, LO Drive - Power 14 to 18 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for M9-0444INV can be seen below.