Specification: Hard Disk Fanout Raid cable Host: SFF-8087 connector Target: 4xSFF-8482 SAS connector SAS cable: SAS 3.0 30AWG tinned copper Impedance :100 ohm Length is 1 Meter. Package:Mini SAS 36 SFF-8087 to SFF-8482 Connectors Cable SAS cable provides an internal computer connection between a serially-connected SCSI controller card host and a directly connected storage hard drive