【Kindly Reminder】Please note: this cable can Not work with SAS Driver. Internal Mini SAS 36pin SFF-8087 to (4) 29pin SFF-8482 connectors with SATA Power. 【Mini SAS to SAS Cable】Mini SAS 36 pin (SFF-8087) connect to the controller, 4 x SAS connect to the HDD (Hard Disc Driver). 【36 Pin to 29 Pin Cable】Mini SAS 36 pin is Host, 4 x SAS 29 pin is target, Internal mini Serial Attached SCSI x 4 (SFF-8087) to (4) x1 (SFF-8482) Serial Attached SCSI (controller based) fan-out cables.