The M1-0412 from Marki Microwave is a RF Mixer with RF Frequency 4000 to 12000 MHz, LO Frequency 4000 to 12000 MHz, IF Frequency DC to 4 GHz, Conversion Loss 5 dB, LO/RF Isolation 40 dB. Tags: Surface Mount, Double Balanced Mixer. More details for M1-0412 can be seen below.