The TE Connectivity / AMP Brand part 4-643814-2 is a 12P MTA100 connector assembly with a polarizing rib. This connector assembly is designed to provide a reliable and secure connection for various applications. The polarizing rib ensures proper alignment during mating, preventing misconnections and ensuring optimal performance. With its high-quality construction and easy-to-use design, the 4-643814-2 is an ideal choice for a wide range of electronic projects.