The GXR-14 from RF Bay is a RF Mixer with LO Frequency 1.5 to 4.5 GHz, IF Frequency DC to 1.5 GHz, Conversion Loss 8.5 dB, LO Drive - Power 13 dBm, P1dB 10 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for GXR-14 can be seen below.