The M4-0026 from Marki Microwave is a RF Mixer with RF Frequency 500 to 26500 MHz, LO Frequency 500 to 26500 MHz, IF Frequency DC to 400 MHz, Conversion Loss 7.5 dB, LO/RF Isolation 25 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for M4-0026 can be seen below.