The MMCWGA-WR62-NF-200 from Mesa Microwave is a Waveguide to Coax Adapter with Frequency 12.4 to 18 GHz, Power 200 W, Insertion Loss 0.27 dB, Operating Temperature -40 to 70 Degree C, Weight 0.03 kg. More details for MMCWGA-WR62-NF-200 can be seen below.