The Keysight E5405A Pro Series soft touch connectorless probe provides a convenient, reliable means of probing your target system without the need for a connector. Pro Series soft touch connectorless probing supports the new industry standard interface for smaller connectorless probing. This new footprint is 30% smaller than our original soft touch probes making it easy to use in designs that are tight on space. The soft touch top-side retention module is mounted on the same side of the board as the connectorless footprint so there is no need to access the back side of the board or for a special retention module for thick boards. Keysight's soft touch connectorless technology ensures a long life of trouble-free probing without the need for special plating or preparation of the probe site.