The SFQ-49351311-1919SF-N1 from ERAVANT is a Waveguide Mixer with RF Frequency 40 to 51 GHz, LO Frequency 40 to 51 GHz, IF Frequency DC to 2 GHz, Conversion Loss 9 to 13 dB, LO Drive Level 16 to 19 dBm. More details for SFQ-49351311-1919SF-N1 can be seen below.