The MM1K-1857HCH-2 from Marki Microwave is a Space Qualified RF Mixer with 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, P1dB 9 dBm. Tags: Die, Double Balanced Mixer, Passive Mixer. More details for MM1K-1857HCH-2 can be seen below.