The RFWA284D0CFAL from RF-Lambda is a Waveguide to Coax Adapter with Frequency 2.6 to 3.95 GHz, Power 500 W, Insertion Loss 0.2 dB, Operating Temperature -40 to 85 Degree C, Storage Temperature -50 to 105 Degree C. More details for RFWA284D0CFAL can be seen below.