The TE Connectivity 2-5530843-3 is a 70-position female card-edge connector from the Standard Edge II series. This is the connector you spec when a production PCB needs a reliable edge interface for repeated card insertion.
Card Thickness and PCB Fit
The card slot accepts PCBs from 0.054" to 0.070" (1.37mm to 1.78mm) thick. A standard 1.6mm (0.063") board falls right in the middle of that window — so yes, this connector works with common 1.6mm PCB stock. The dual-readout contacts wipe both sides of the card, so the board must have plated pads on both top and bottom edges.
Contact Plating and Mating Duty
That thickness of gold handles repeated card insertions — think production test fixtures or field-swappable modules — without wearing through to the base metal.