Mini SAS 36 (SFF-8087) Male Connect to the Controller, 4x Angle SATA Connect to the backplane Mini SAS 36 (SFF-8087) Male is Host, 4 x SATA female is target Mini SAS 36 (SFF-8087) connect to the Controller, 4 Sata connect to 4 HDD Serial Attached SCSI (SAS) is a high-speed data storage interface designed for high-throughput and fast data access Cable Length 50CM