Originally designed to receive pass-through pins that skewer the board like a shish kabob, the expanded row spacing of the pins on this header allow it to span a breadboard's central gap. This enables you to painlessly connect your breadboard to standard 0.1 inch dual-row connectors, like those commonly found on ribbon-cable.
The pictures below show this header spanning the gap of a breadboard. There are also a few pictures that illustrate this header's unique double entry design, which allows a male pin to pass through it like a shish kabob skewer.
The male headers appearing in the pictures below are sold separately, as is the breadboard.
Click here for the datasheet (PDF download).
Pictures - click to enlarge: