Keysight-Agilent E2695A

E2695A SMA Probe Head allows connection of single-ended or differential
signals that exist on SMA connectors to AT-1130 series InfiniMax probes.

Features
Full 7 GHz bandwidth.
Uses one oscilloscope channel (vs. two channels with Ch A - Ch B).
Semi-rigid coax rotate to allow span changes and are closely matched therefore
don't require de-skew.
Better common mode rejection than Ch A - Ch B method.
Probe cable loss is compensated - cables to the oscilloscope are not.
Common mode connection can be used to inject a common mode voltage (input) or
monitor the common mode voltage (output).

Keysight-Agilent E2695A datasheet & specifications