The TE Connectivity / AMP Brand part 2-640456-0 is a polarized MTA-100 HDR (Header) assembly designed with a unique notched feature and a .025 square shape. This reliable and high-quality connector ensures secure and accurate mating. It is ideal for various applications where precise electrical connections are required, such as in automotive, telecommunications, and industrial equipment. With its polarized design, the 2-640456-0 offers enhanced mating alignment and prevents accidental misconnections, ensuring optimal performance and safety. Trust TE Connectivity / AMP Brand for your connectivity needs.