The MXR-35M from RF Bay is a RF Mixer with LO Frequency 5 MHz to 3.5 GHz, IF Frequency 5 MHz to 2.5 GHz, Conversion Loss 8 to 9.5 dB, LO Drive - Power 13 dBm, P1dB 9 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MXR-35M can be seen below.