The XUYDCFCO966S is a photoelectric sensor connector from the Telemecanique line, under the Square D Switches & Sensors brand. It belongs to the Photoelectric Sensors category, meaning it serves as the interconnect between the sensor head and the control wiring in a sensing loop.
Traceability and packaging reference
UPC 12 digit 389119009969 is assigned to this connector — scan that code at goods-in to match the nameplate against the PO line.