The M1R-0920 from Marki Microwave is a RF Mixer with RF Frequency 9000 to 20000 MHz, LO Frequency 9000 to 20000 MHz, IF Frequency DC to 10 GHz, Conversion Loss 5.5 dB, LO/RF Isolation 35 dB. Tags: Surface Mount, Double Balanced Mixer. More details for M1R-0920 can be seen below.