The MAC-42 from Mini Circuits is a Space Qualified RF Mixer with RF Frequency 0 to 4200 MHz, LO Frequency 0 to 1000 MHz, IF Frequency 0 to 1500 MHz, Conversion Loss 6.1 to 8.9 dB, P1dB 1 dBm. Tags: Surface Mount. More details for MAC-42 can be seen below.