It uses a 0.100" (2.54mm) pitch on both the rows and the pin spacing, which is the classic 0.1-inch grid that matches standard perfboard and prototyping layouts. The 5 A figure is per-contact at the rated temperature rise — if you're running all 72 pins at once, the total current through the connector is limited by the combined temperature rise, so derate for dense bundles.
Right-Angle Board-Edge Fit
This is the standard choice for a card-edge or mezzanine arrangement where the board stack has a fixed z-height and you need the connector to sit flush against the edge. The push-pull fastening is a simple friction lock; there's no latch or screw, so the mated connection relies on the pin-to-receptacle interference fit for retention.
Plating and Material Choices
The base contact material is phosphor bronze, which gives good spring properties and conductivity.