The SFH-08SFSF-A3 from ERAVANT is a Waveguide Mixer with RF Frequency 90 to 140 GHz, LO Frequency 3 to 6.1 GHz, IF Frequency DC to 1.3 GHz, Conversion Loss 48 dB, LO Drive Level 16 dBm. Tags: Harmonic Mixer, Balanced Mixer. More details for SFH-08SFSF-A3 can be seen below.