Keysight Agilent 85130C 3.5 mm - Type N (m & f) Adapter Kit 85054-60029/60030Condition: Used Designed to protect the test set port with a special rugged female connector and a return loss of 28 dB or better The Keysight 85130C test port adapter is designed to protect the test set port when it would be directly connected to the device under test. These adapters have a special rugged female connector designed for connecting to the network analyzer test port. This special connector will not mate with a standard male connector,