The GXR-20 from RF Bay is a RF Mixer with LO Frequency 20 to 32 GHz, IF Frequency DC to 10 GHz, Conversion Loss 7 to 9 dB, LO Drive - Power 13 dBm, P1dB 9 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for GXR-20 can be seen below.