Rohde & Schwarz ZN-Z54 Automatic Calibration Unit, 2.92 mm (f), 2 Ports, 9 kHz to 40 GHz

Calibration Unit 50 Ohms 9 kHz to 40 GHz, 2 ports, 2.92 mm (f) characterized up to 43.5 GHz for R and S ZNA, ZVA/T, ZNB/T, ZND, ZNL, ZNLE