5111448-9 is a vertical pin header connector designed for ribbon cable interconnection applications. It features 40 positions with a 0.100 inch (2.54 mm) centerline spacing and no latches, providing a straightforward mating interface. The connector has overall dimensions of 2.492 inches (63.30 mm) in length (dimension A) and 2.976 inches (75.59 mm) in width (dimension B), making it suitable for standard PCB layouts. This connector is RoHS compliant and is commonly used in board-to-board and cable interconnection systems where reliable signal transmission and mechanical stability are required.