The 103321-4 is a single-row, 4-position breakaway header connector designed for wire-to-board interconnections with 0.100 inch (2.54 mm) center spacing. It features 0.025 inch (0.64 mm) square copper alloy posts with tin plating or gold over nickel finish options, housed in a white polyester 94V-0 rated insulation displacement connector (IDC) body. The header supports one-step assembly using the IDC terminal technique with slotted contacts that are lubricated to prevent fretting corrosion. This connector is ideal for personal computer systems and other applications requiring stackable, end-to-end connectable headers with reliable insulation displacement termination.