Agilent 85033E Standard Mechanical Calibration Kit, DC to 9 GHz, 3.5mm

The Keysight 85033E 3.5 mm calibration kit is used to calibrate Keysight
network analyzers for measurements of components with 3.5 mm connectors
up to 9 GHz.

85033E 3.5 mm Calibration Kit User and Service Guide

85033E Specifying Calibration Standards