Mini SAS 4M External Split Cable 3X by1X (3Hard Disk Drive x 1 Tape Drive) NOTE: This cable is needed to connect the SAS enclosure/drives to the server.Information technology professionals rely on HP quality to ensure maximum productivity. As the power of applications, processors, memory adapters and storage devices increases, high-end computer users are seeking ways to optimize their system performance. HP provides leading solutions, adding new levels of performance, availability, flexibility, and management.