The MM1-1857H from Marki Microwave is a RF Mixer with RF Frequency 18 to 57 GHz, LO Frequency 18 to 57 GHz, IF Frequency DC to 21 GHz, Conversion Loss 7.5 to 19 dB, LO Drive - Power 13 to 21 dBm. Tags: Die, Module with Connectors, Double Balanced Mixer, Passive Mixer. More details for MM1-1857H can be seen below.