1、SAS (Serial Attached SCSI) is a new generation of SCSI technology. It is the same as the popular Serial ATA (SATA) hard disk. 2、Uses serial technology to achieve higher transmission speed and shortens the connection line. Improve interior space and more. 3、SAS is a new interface developed after the parallel SCSI interface. Designed to improve the performance, availability, and scalability of your storage system and provides compatibility with SATA drives. 4、High‑density (HD) MiniSAS SFF‑8643 internal cable assemblies are available for SAS 2.1, 6Gb/s and SAS 3.0, 12Gb/s specifications. 5、SFF‑8643 is a new connector that takes up less PCB space and allows higher port density for internal hosts and devices. 6、The mixed version of these new cables will allow a smooth transition from 6Gb to 12Gb.