Agilent/HP N1914A EPM Series Dual-Channel Power Meter
Agilent N1913A and N1914A EPM Series power meters offer powerful new features, yet are code compatible with the popular E4418B and E4419B EPM power meters.
Option 108 = Parallel Rear Panel Sensor Input Connectors and Front Panel Reference Calibrator Connector 2 Rear USB Ports