The MXR-5 from RF Bay is a RF Mixer with LO Frequency 0.5 to 500 MHz, IF Frequency DC to 500 MHz, Conversion Loss 6.5 to 8.2 dB, LO Drive - Power 10 dBm, P1dB 3 to 5 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MXR-5 can be seen below.