This adapter is a passive PCB board adapter with two external 26-pin. Mini SAS connectors (SFF-8088) on the one side, and eight internal 7-pin. SATA connectors on the other side. This adapter can be installed on more than one holder, it is possible that adapter optional in the PCI slot or in a (former) SCSI enclosure with 50-pin Centronics connectors to operate. The adapter is for the construction of storage devices, suitable in short or tall cases, rack stations, external (SCSI) disk enclosures, server blade racks ect.