The MXR-25 from RF Bay is a RF Mixer with LO Frequency 1.4 to 2.5 GHz, IF Frequency DC to 500 MHz, Conversion Loss 7.5 to 9 dB, LO Drive - Power 7 dBm, P1dB 1 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MXR-25 can be seen below.