Coaxial Waveguide Adapter, 1.0 mm (f), 75 to 110 GHz
W281C - Keysight Technologies
The Keysight W281C is a 1-mm female to W-band waveguide adapter with a frequency range of 75 GHz to 110 GHz. The Keysight W281C is used with the Keysight 8510XF systems.