The SFB-28-N1 from ERAVANT is a RF Mixer with RF Frequency 26.5 to 40 GHz, LO Frequency 26.5 to 40 GHz, IF Frequency DC to 13.5 GHz, Conversion Loss 6.5 dB, LO Drive - Power 10 to 13 dBm. Tags: Module with Connectors, Single Balanced Mixer. More details for SFB-28-N1 can be seen below.