Features: 1.[High Speed] SFF 8643 to 4SAS cable uses a high purity tinned copper core with an aluminum foil shield to enhance data transfer efficiency up to 12GBPS and reduce heat loss. 2.[Flexible And Durable] SFF 8643 to SATA cable with dual channel aluminum foil data cable for more efficient transmission. Flexible and pull resistant, can be flexibly arranged in any corner. 3.[Stable Signal] The seven contacts of the SFF 8643 to 4SAS 29P cord are gold plated with pure copper, which is wear resistant and prevent corrosion to enhance signal transmission quality. 4.[Point To Point Connection] SAS is a point to point connection storage system, which has many advantages over the previous parallel SCSl connection system. 5.[Easy To Use] It is a smaller, more flexible serial design connection system instead of SCS, SAS connectors allow devices to be connected via cable or directly to the backboard. specification:Item Type: SFF 8643 to 4 SAS Cable Material: PVC Length: Approx. 0.5m / 1.6ft Connection: Reverse SFF 8643 to 4SATA Cable Transfer Rate: Up to 12Gbps PackageList:1 x SFF8643to4SASCable NoteManual measurement, please allow some errors.