The MM1-1240SS from Marki Microwave is a RF Mixer with RF Frequency 12 to 40 GHz, LO Frequency 12 to 40 GHz, IF Frequency DC to 12 GHz, Conversion Loss 8 to 16 dB, LO Drive - Power 18 to 23 dBm. Tags: Module with Connectors, Double Balanced Mixer, Passive Mixer. More details for MM1-1240SS can be seen below.