Keysight N4693D Electronic Calibration Module (ECal), 10 MHz to 50 GHz, 2.4 mm, 2-portPlace of Origin Pahang, Malaysia Warranty Other Brand Name Keysight Model Number N4693D Brand Keysight Model N4693D Connector 2. 4 mm Frequency range 10 MHz to 50 GHz Accessory With Torque Wrench Calibration 3rd party ISO17025 Condition Both New and used in stock Product Description Product appearance: 80% 99% New Functional test: Normal We have 3 units of Keysight N4693D Electronic Calibration Module (ECal), 10 MHz to 50 GHz, 2. 4 mm, 2 port.