The MXR-20E from RF Bay is a RF Mixer with LO Frequency 1.5 to 2 GHz, IF Frequency DC to 300 MHz, Conversion Loss 6 to 8 dB, LO Drive - Power 7 dBm, P1dB 1 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MXR-20E can be seen below.