Internal HD Mini SAS soff-8643 to Mini SAS 36pin (soff-8087) connection cable High density (HD) mini-sass soff-8643 internal cable assemblies are available for SAS 2. 1, 6GB/s and SAS 3. 0, 12GB/s specification Soff-8643 is the new connector uses less PCB real estate and allows higher port density for internal hosts and devices