The DRBF-1A is a mounting flange designed for DRB Series electrical connectors with 102 or 128 cavity configurations and A-key keying. This flange accessory is used to mount large-cavity DRB connectors to a surface, providing secure mechanical attachment and alignment. The flange is part of TE Connectivity's comprehensive connector accessory portfolio for industrial and commercial transportation applications. It is commonly used in high-density connector installations where multiple cavities and keyed configurations require robust mounting solutions to ensure proper connector positioning and retention in harsh automotive and industrial environments.