The MXR-27 from RF Bay is a RF Mixer with LO Frequency 1 MHz to 2.7 GHz, IF Frequency 1 MHz to 2 GHz, Conversion Loss 7 to 9.5 dB, LO Drive - Power 10 dBm, P1dB 6 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MXR-27 can be seen below.