The M1D-0420 from Marki Microwave is a RF Mixer with RF Frequency 4000 to 20000 MHz, LO Frequency 2000 to 10000 MHz, IF Frequency DC to 4 GHz, Conversion Loss 6 dB, LO/RF Isolation 45 dB. Tags: Surface Mount, Double Balanced Mixer. More details for M1D-0420 can be seen below.