The SFB-42-N1 from ERAVANT is a RF Mixer with RF Frequency 18 to 26.5 GHz, LO Frequency 18 to 26.5 GHz, IF Frequency DC to 8 GHz, Conversion Loss 6 dB, LO Drive - Power 10 to 13 dBm. Tags: Module with Connectors, Single Balanced Mixer. More details for SFB-42-N1 can be seen below.