The MM1H-0312HCH-2 from Marki Microwave is a Space Qualified RF Mixer with LO Frequency 3 to 12 GHz, IF Frequency DC to 4.5 GHz, Conversion Loss 7.5 to 9 dB, LO Drive - Power 13 to 20 dBm, P1dB 9 dBm. Tags: Die, Double Balanced Mixer, Passive Mixer. More details for MM1H-0312HCH-2 can be seen below.