An External HD Mini SAS SFF-8644 to 4x SFF-8482 and 15P power all-in-one cable is used to connect a controller or RAID card with an external Mini SAS HD SFF-8644 port to up to four SAS drives that use SFF-8482 connectors. The integrated 15-pin power leads provide power to each drive, making it suitable for direct-attached storage setups.