This adapter is a passive PCB board adapter with two external 26-pin. Mini SAS connectors (SFF-8088) on the one side, and two internal 36-pin. Mini SAS connectors (SFF-8087) on the other side. This adapter can mount in one of his (former) SCSI enclosure with 50-pin Centronics connectors are to operate and works in both directions. The adapter is for the construction of storage devices in short or tall cabinets, rack stations, external (SCSI) disk enclosures, server blade racks ect. suitable.