The M2-0219 from Marki Microwave is a RF Mixer with RF Frequency 2000 to 19000 MHz, LO Frequency 2000 to 19000 MHz, IF Frequency .001 to 6 GHz, Conversion Loss 7 dB, LO/RF Isolation 25 dB. Tags: Surface Mount, Triple Balanced Mixer. More details for M2-0219 can be seen below.