The FMWCA1110 from Fairview Microwave is a Waveguide to Coax Adapter with Frequency 33 to 50 GHz, Power 10 W, Insertion Loss 0.5 dB, Operating Temperature -20 to 70 Degree C, Storage Temperature -40 to 85 Degree C. More details for FMWCA1110 can be seen below.