The MMC-DBM1218-40 from Mesa Microwave is a RF Mixer with RF Frequency 12 to 18 GHz, LO Frequency 12 to 18 GHz, IF Frequency DC to 3 GHz, Conversion Loss 6 dB, Noise Figure 6 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for MMC-DBM1218-40 can be seen below.