The MMC-DBM-0420-SM from Mesa Microwave is a RF Mixer with RF Frequency 4 to 20 GHz, LO Frequency 4 to 20 GHz, IF Frequency DC to 4 GHz, Conversion Loss 6 to 9 dB, P1dB 2 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for MMC-DBM-0420-SM can be seen below.