MiniSAS SFF-8643 to 4X SFF-8482 Cable Internal mini Serial Attached SCSI SFF-8643 to (4) SFF-8482 Serial Attached SCSI fan-out cable, with one quad-channel SFF-8643 on one end, and four single-channel SFF-8482 on the other. Compliant with SAS 3.0, supports up to four SAS/SATA hard drives, provides point data transfer speeds up to 12 Gbit/s. SFF-8643 Connector: Internal HD Mini SAS connector on the host for connecting motherboard or RAID Controller. (Note: Before you buy this cable , please make sure the Mini SAS (SFF-8643) on your motherboard or RAID Controller. If the Mini SAS (SFF-8643) on your backplane, this cable will not work with them.) SFF-8482 Connector: 22-pin SAS drive connector on the target end for connecting directly to the SAS drives. All SFF-8482 cables are wired the same way, no need to worry about directionality. Widely applicable for enterprise storage, high-performance computing, networking, data centers, workstations, etc.