Some of the more familiar ones used in IBM PC compatibles are: The power connector on the 3½-inch floppy drive, informally known as "the Berg connector", is 2.50 mm pitch (distance from center to center of pins).

[1] The plastic connector housing is most often white, as shown (TE Connectivity / AMP 171822-4), but black is also common.

The part numbers used for the female contact pins depends on the detailed design, the surface coating (for example tinned or gold plated) and the form of supply.

[5] The shape of the connector housing makes it very easy to determine the pin number allocations by visual inspection.

In 1998, Berg Electronics was acquired by FCI (Framatome Connectors International) for $1.85 billion.