The ALOGIC External Mini SAS SFF-8 88 to SAS SFF-847 Cable - Male to Male mostly used in InfiniBand SATA and Serial Attached SCSI applications. External Mini SAS to External 4 x SAS cables feature a Mini SAS Universal Keyed Zinc Die Cast SFF-8 88 connector on one end and a SAS 4x Zinc Die Cast SFF-847 connector with thumbscrews on the other end.