The MR25566 from Spectrum Control is a RF Mixer with RF Frequency 0 to 13300 MHz, LO Frequency 0 to 13300 MHz, IF Frequency 0 to 5000 MHz, Conversion Loss 11 dB, LO Drive - Power 17 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MR25566 can be seen below.