The SFS-42-N1 from ERAVANT is a RF Mixer with RF Frequency 18 to 26.5 GHz, LO Frequency 9 to 13.25 GHz, IF Frequency DC to 5 GHz, Conversion Loss 12 dB, LO Drive - Power 10 to 15 dBm. Tags: Module with Connectors, Sub-Harmonic Mixer. More details for SFS-42-N1 can be seen below.