The ADP-W-12500-5000-75-SF from HASCO Components is a Waveguide to Coax Adapter with Frequency 10 to 15 GHz, Insertion Loss 0.2 dB, Operating Temperature -50 to 85 DegreeC, Weight 2.75 Ounces. More details for ADP-W-12500-5000-75-SF can be seen below.