The RFWA137B9CGAL from RF-Lambda is a Waveguide to Coax Adapter with Frequency 5.85 to 8.17 GHz, Power 100 W, Insertion Loss 0.2 dB, Operating Temperature -40 to 85 Degree C, Storage Temperature -50 to 105 Degree C. More details for RFWA137B9CGAL can be seen below.