Which connection protocol supports dual-ported drives and is optimized for backplane interconnections?

ATA (Advanced Technology Attachment) is a parallel interface designed for desktop storage connections that does not support dual-porting or enterprise backplane configurations.

SATA (Serial ATA) is a serial successor to ATA designed primarily for consumer and desktop use, and it does not natively support dual-porting for redundant controller connections.

IDE (Integrated Drive Electronics) is a legacy parallel interface standard used in older desktop systems that does not support dual-porting or backplane interconnection in enterprise environments.

SAS natively supports dual-porting, allowing a single drive to simultaneously connect to two separate SAS HBA controllers, providing redundancy and path failover with no single point of failure. It is specifically architected for backplane interconnections in enterprise storage enclosures and servers, supporting point-to-point serial connections that deliver high reliability, scalability, and dense drive configurations required in enterprise settings.