The MXR-12 from RF Bay is a RF Mixer with RF Frequency 400 to 1200 MHz, LO Frequency 400 to 1200 MHz, IF Frequency DC to 800 MHz, Conversion Loss 6 to 7.5 dB, LO Drive - Power 4 to 10 dBm. Tags: Module with Connectors, Double Balanced Mixer, Passive Mixer. More details for MXR-12 can be seen below.