The WR22-VFR+ from Mini Circuits is a Waveguide to Coax Adapter with Frequency 33 to 50 GHz, Insertion Loss 0.25 to 0.50 dB, Operating Temperature -40 to 85 Degree C, Storage Temperature -55 to 100 Degree C, Weight 25 g. More details for WR22-VFR+ can be seen below.