1pc Mini SAS HD (SFF-8643) to 8087 Cable. High Density (HD) MiniSAS SFF-8643 to MiniSAS SFF-8087 Internal cable assemblies are available for SAS 2.1, 6Gb/s and SAS 3.0, 12Gb/s specification. Like the external HD MiniSAS, this new connector uses less PCB real estate and allows higher port density for internal hosts and devices.